#psychomotor effects

[ashokan-kannaarth]

Marijuana's Influence on Brain Health: Unraveling Complex Cognitive and Psychiatric Effects

Marijuana is a category of drug, it has many medical uses abut abuse causes many complications and leads to many unpredictable life issues.

Marijuana, particularly its psychoactive component Δ9-tetrahydrocannabinol (THC), has significant effects on the brain, primarily through its interaction with the endocannabinoid system. This system includes cannabinoid receptors, mainly CB1 and CB2, distributed throughout the brain and body https://www.webmd.com/mental-health/addiction/marijuana-use-and-its-effects Mechanisms of Action CB1…

[giftedsupport]

i just got diagnosed as gifted as a 20 year old!! i went to get tested because i thought i was autistic but turns out i'm gifted and have adhd

i was wondering if you would teach me a little bit about the words and general stuff about this diagnostic that i should know- most of the info i'm finding focuses on little kids, which isn't very helpful

Congratulations! It's so great you're learning new things about yourself!

Some basic info about giftedness:

--It's sometimes also called asynchronous development, because gifted people mature more quickly than their peers in some ways and more slowly in others.

--Giftedness does not have to be in traditional academic arenas.

--Gifted people are actually MORE likely to have things like ADHD or learning disabilities than the general public, not less! (People with both giftedness and another difference are sometimes called "twice exceptional" (2e).

--We got weird brains, man.

--Dabrowski described giftedness in terms of overexcitabilities - psychomotor, sensual, intellectual, imaginational, and emotional. Giftedness also tends to intersect a lot with being a Highly Sensitive Person (HSP).

--Gifted people's brains are often faster than the average person's, which can lead to some interesting results, like really fast reflexes or auditory processing disorder.

--People think that giftedness is synonymous with "achievement," but that's a misconception. While many gifted people do end up achieving greatly in their chosen area, it is not always the kind of achievement that our society values. Furthermore, pressuring gifted people to achieve can have the opposite effect.

--Gifted people are more likely than the average person to be traumatized by emotionally unsupportive environments, but are also likely than the average person to recover more quickly when they are placed in a healthy/nurturing environment.

That's all I can think of off the top of my head. Let me know if you have any more questions!

[garrett-strangelove]

I have long been interested in what procedures are carried out on the Joker in Arkham. And comics gave me the answer about lobotomy, but I don’t remember mentions of electroconvulsive therapy (ECT) (if there are such comics, recommend them in the comments).

I'm a big fan of the Joker being miserable, so I think that the procedure was carried out on him in a completely inhumane way: without anesthesia and precautions against fractures. Accordingly, all the side effects of ECT affected him 10 times more strongly. And they are:

1. Nausea and vomiting

2. Dizziness

3. Disorientation

4. Memory loss, impairment of long-term memory

5. Psychomotor agitation

6. Derealization

7. Insomnia

8. Tachycardia

9. Dental injuries

10. Jaw dislocation

Etc...

And if ECT calmed his manic tendencies for a while, it also gave a bunch of side effects, and the Joker simply experienced emotional overload, anxiety and fear of the procedure.

Batman once found out about the inhumanity of therapy and gave them all a hard time. Did the Joker feel better after this? A little.

[loving-n0t-heyting]

what are the negative effects of common atypical antipsychotics?

> First, the adverse effects of antipsychotic medications are widely attested and very serious. They fall into at least two classes: cognitive impairments, and extrapyramidal disorders (such as akathisia, parkinsonism, and tardive dyskinesia). Both are concerning.

> Increasing evidence, both anecdotal and studied, suggests that antipsychotics frequently impair cognitive functioning. This is often described by those who have suffered from it as “zombie-like”, or as though they lacked the capacity for abstract thought [1]. There is a large empirical literature giving rigorous backing to these informal reports (see [2] for an overview and bibliography); more specifically, much of this literature suggests that antipsychotics can seriously impair procedural learning [3] [4] [9]. These empirical findings in the scientific literature, while plentiful and robust, seem not to have fully percolated yet into clinical practice.

> In addition to their potential adverse cognitive effects, antipsychotic medications are well-known to carry the risk of painful, disabling, and potentially damaging motor (“extrapyramidal”) disorders. These include akathisia (commonly described by those to experience it as “torture”), parkinsonism (a collection of symptoms similar to those involved in Parkinson’s Disease), and tardive dyskinesia (a chronic and unremitting motor disorder resulting from long-term use of antipsychotics) [5] [6] [7] [8]. While these conditions are common generally among users of antipsychotics (for those taking haloperidol—a commonly prescribed antipsychotic—extrapyramidal symptoms may present at or above fifty percent [10]), there is evidence they may be especially likely and severe, even at low doses, for autistic people [11] [12].

[1] Medical Xpress, “Antipsychotic meds prompt zombie-like state among patients” 5 Feb 2015 https://medicalxpress.com/news/2015-02-antipsychotic-meds-prompt-zombie-like-state.html

[2] Sarah Constantin, “Antipsychotics Might Cause Cognitive Impairment” 14 Jan 2018 https://www.sarah-constantin.org/blog/2018/1/14/antipsychotics-might-cause-cognitive-impairment

[3] Psychopharmacology, “Procedural learning in schizophrenia after 6 months of double-blind treatment with olanzapine, risperidone, and haloperidol” Sep 2003 https://pubmed.ncbi.nlm.nih.gov/12827347/

[4] Neuropsychopharmacology, “Effects of risperidone on procedural learning in antipsychotic-naive first-episode schizophrenia” Jan 2009 https://pubmed.ncbi.nlm.nih.gov/18536701/

[5] Missd, “The Agony of Akathisia” 6 Dec 2015 https://missd.co/256/

[6] National Commission on Correctional Health Care, “Akathisia: A Mysterious Medication-Induced Movement Disorder” 19 Jul 2021 https://www.ncchc.org/akathisia-a-mysterious-medication-induced-movement-disorder/

[7] Cleveland Clinic, “Parkinsonism” https://my.clevelandclinic.org/health/diseases/22815-parkinsonism#symptoms-and-causes

[8] National Library of Medicine, “Tardive Dyskenisia” 16 Aug 2022 https://www.ncbi.nlm.nih.gov/books/NBK448207/

[9] Journal of Psychiatric Research, “Effects of haloperidol and risperidone on psychomotor performance relevant to driving ability in schizophrenic patients compared to healthy controls” Jan 2005 https://pubmed.ncbi.nlm.nih.gov/15504428/

[10] MedicineNet, “Side effects of Haldol (haloperidol)” https://www.medicinenet.com/side_effects_of_haloperidol/side-effects.htm#haldol_haloperidol_side_effects_list_for_healthcare_professionals

[11] Spectrum News, “The missing generation” 9 Dec 2015 https://www.spectrumnews.org/features/deep-dive/the-missing-generation/

[12] Journal of Neurodevelopmental Disorders, “High rates of parkinsonism in adults with autism” 30 Aug 2015 https://jneurodevdisorders.biomedcentral.com/articles/10.1186/s11689-015-9125-6

[findmeinthefallair]

For the sleepover ask game, share some owl house headcanons about what happened during the time skip. As many as you'd like. :)

Ayyy finally answering this, friend! Sorry that it took centuries to get to!

The one thing I don't shut up about is Hunter's ensuing depression after Belos's death, contrary to the Hollywood kind of ending where everything becomes sunny and everyone can easily move on. We would see the stuff that a therapist would tick the checkboxes for in a mental status exam: slowing down psychomotor-wise e.g. slower speech, flat moods which are the unsettling polar opposite to the earnest emotional expression we love him so much for, distracted attention span, less tidy appearance, and he'd be sleeping excessively for some time. (full mental health meta on this subject here: link) Camila would be making sure he has plenty of movies to watch on the couch so that he isn't locking himself too much in the basement T_T Darius would be monitoring how he helps to rebuild the Isles so that he doesn't overexert himself.

Amity, the twins and Alador would go for walks to the store, in the woods etc, and this bonding time in restoring their relationships would be so important.

Luz's two main challenges would be: 1. becoming more aware of the domino effect of teaching Philip the light glyph spell in the timepool, especially now that everyone is coming out of survival mode, 2. the guilt surrounding Flapjack...I don't think she'd just move on from puppet!Hunter's words "And then I lost him, helping you. But you still get to have your own palisman?!" God this makes me wonder...what was it that the Hexsquad went through in their minds which led to the beautiful decision to get their red tattoos together? I'm gonna sniffle, jfc.

Gus might be the first person to broach the subject of Flapjack again, since he verbally put the same subject out in the open in For the Future (working with Willow, who took the flyer derby photo off the wall to show to Hunter and trying to reach out to him). It's also in line with how he was the first one to express sadness after they became trapped in the human realm i.e. he broke down crying right away. I love this about him whereby he may excel in Illusion magic but he gets down to the truth right away.

Willow is utterly exhausted and there's still some remaining upset from her breakdown about how much she missed her dads, shouldered things on her own and kept things bottled up. She approaches Camila not long after they leave The Collector's Palace to say that Camila was right, and to say thank you. And she needs a bit of space alone for the upset feelings to run their course.

Mattholomule has more surprises up his sleeve for Gus, lol. Gus just doesn't stop being flabbergasted.

The first person to say anything to Kikimora, who is moping and stewing away somewhere, is of course Luz.

Luz and Hunter more or less switch places emotionally if you compare their TTT and WaD demeanors (in FtF, they were both under somewhat similar emotional strain, in their own arcs). In TTT, Luz was very far from her vibrant self, ruminated on her guilt and slowed down so much, while Hunter was on the move: excitedly exploring his self and interests while being in his comfort zone of wanting to help others (he still had the capacity to do so!). Luz wasn't out exploring and connecting with others: she was in the dark prison of depression. If we flip this for the pre-timeskip era: Hunter would slow down by gradually running out of steam to even help others, and isolate himself before getting better...struggling with the absence of Flapjack and Belos, being frozen in time in terms of this bereavement. While Luz, 1. became unfrozen from her long-term bereavement by beginning to accept that her dad and Papa Titan were gone (an emotional place which Hunter simply cannot reach until many months later), 2. was reunited with Eda and King and on the same page as Camila, and would be on the move seeing what she can do to contribute for the Isles. There is a parallel between both of them wrestling with guilt: Luz's guilt about how her encounter with young Philip led to Belos's regime, Hunter's about the impact of his actions as the Golden Guard.

God this one is tough to lay out in clear detail but...the sleeping arrangements for the Hexsquad during the first few nights...emotions catching up to them...I really wonder what it was, and who would want more of their own space and not trouble others (yet definitely not being at peace with whatever was going through their minds) versus who expressed their need to not be alone at night.. Maybe Luz wanted to be with Eda, Raine and King in the Owl House, Amity would have her space back in Blight Manor, and we have Willow, Gus and Darius extending invitations to Hunter. There's no way I can predict which choice Hunter made, coz he may have gone with an arrangement that would've left the others concerned. Whether he obliged out of politeness or was firm enough to say that he didn't want to burden them...hard to tell. OMT, what if he slept alone BUT the palismen secretly huddled by his side in the night like in this beautiful fanart which is one of my faves??: link

Contrary to Hunter, Vee's response to Belos's death would be far simpler closure because she had zero attachment to Belos. Hell, she wasn't raised by him for an entire childhood. And while she would've had some survivor's guilt, we know that the other basilisks eventually came back to life, unlike (ughhhhh) the Grimwalkers who can't be brought back. These are the clues as to how Vee could open up more, smile brightly, and begin to explore the big wide world around her:

Which means she would've definitely been an important influence for Hunter's recovery.

Like...

How long till he could freely smile again? Camilaaaaa...take care of your three precious kids.

These are the first headcanons that came to mind. Might reblog this and add more over time. Thanks for the ask :)

[borderline-culture-is]

not a culture ask but looking for resources one- im a borderline and im trying to look into bipolar disorder, specifically the differences when it comes to mood and manic/depressive episodes

you see, I don't know much exactly of what bipolar disorder looks like (i dont trust pop culture's depictions too much), and what the true difference is when it comes to splitting in bpd compared to episodes in bd. I understand they're separate things, but don't fully understand how they are separate

I knew I saw a blog dedicated to those with both bd and bpd, but can't find it. I just want to know because even though I'm more inclined to just chalk everything up as "just bpd," it would be nice to understand more so it's within my consideration. the episodes I have I raise my brow at sometimes

If you don't have anything on bd vs bpd relating to the differences between splitting and episodes in bipolar disorder, then that's fine ^^ I just didn't know where to find anything so I figured I start somewhere

From what we know, bpd splits/episodes are

Shorter, usually a few days at most (with emptiness in between them

Usually shaped by conflict with ur relationships

More caused by trauma than genetics (brain chemistry can contribute though)

And bipolar episodes are

Longer, lasting from days to weeks on end

Mood between episodes are stable rather than empty

The effects can be a little more physiological from what I've read (ie; the lack of sleep, psychomotor agitation, pressured speech) or at least i think they're somewhat physiological?

Also, BPD splitting is moreso focused on one person or one group of people, while BP episodes are more general and are not focused on a person/group of people. Technically BPD splits could be considered BP episodes, but not all BP episodes are BPD splits.

We're not a professional, and i suggest taking this w 5 pounds of salt.

[chloroformcurry]

Chanel’s ECT helmet, or her “metal bonnet”

The first drawing is from 2023. The second drawing was made recently.

(Updated information and added secondary image on 5/28/24)

Despite her considerable physical strength, Chanel becomes entirely incapacitated during catatonic episodes. Her biggest vulnerability lies in bouts of catatonic stupor, likely originating from an inherited condition passed down from her mother. Catatonia is usually a comorbid disorder, so it exists along a main cognitive or neurological disorder. However, it is unknown which mental disorder Chanel may have given her upbringing. This psychomotor disorder is believed to result from disruptions or imbalances in neurotransmitter pathways, manifesting as symptoms like stupor, mutism, rigidity, waxy flexibility, posturing, and negativism. In extreme instances, it can lead to death, either due to internal complications, known as malignant catatonia, or the inability to meet essential needs because of immobility.

To ensure Chanel's effectiveness in her duties, Sibyl built Chanel a specialized “metal bonnet”, or ECT helmet, which was designed to automatically execute ECT when neurological chemical imbalances were detected ahead of time. She considered the fact that ECT has an 80% to 100% success rate in addressing catatonia and related conditions. This treatment works by inducing minor seizures to recalibrate the brain's chemistry. The helmet emits low-frequency electrical currents to regulate her brain chemistry, preventing such episodes. (ECT is typically given under anesthesia and professional oversight, but, in this fictional instance, Chanel's insensitivity to pain meant one concern was taken off the list) Given its electrical nature, it requires consistent power sources. Sibyl developed this helmet, which is powered by blood as part of their arrangement. In exchange for sustenance, Chanel aids Sibyl by procuring intelligence and bodies from her encounters with traffickers. The helmet is securely bolted into her neck and, although removable, should not be taken off for long periods because the bolts and metal sockets in her neck enable the auto-moderated procedure. These bolts serve as both anchors and receivers, processing signals from electrodes attached to the sockets that contact her neck. These synaptic transmissions occur at the junction where the bolts connect to the sockets, similar to neurons.

The electrodes detect abnormal brain activity, similar to an EEG, and send a small electrical impulse to the bolts. These bolts then relay the information to the control panel at the back of the helmet, which assesses whether conditions are optimal for the procedure. It checks parameters such as the presence of sufficient amounts of non-converted blood, insufficient amounts of non-converted blood, sufficient amounts of fuel-converted blood, or insufficient amounts of fuel-converted blood.

If conditions are safe and the helmet has enough fuel, the control unit sends a signal back to the bolts, which then reaches the metal neck guard near the voice box. This triggers the voice box to alert Chanel of its needs in Morse code. If blood or blood fuel is lacking, the helmet will notify Chanel that it needs her to collect more blood for conversion into fuel to perform the electrocution. If the blood supply is ample but fuel is insufficient, it will inform Chanel that it will begin the conversion process and to station herself somewhere secure so that any neural impulses don’t interfere with the helmet's processes. The remainder of the fuel will be used to catalyze the conversion of blood into fuel.

If conditions are optimal, the voice box gives Chanel a heads-up in Morse code about the number of minutes before a cycle starts, allowing her to find a secure location before a seizure occurs. The helmet can be powered by various fuels, including coagula blood, which can generate electricity through a bioelectrochemical process, or direct contact with an electric outlet. The coagula blood method is preferred due to the mobility it offers compared to stationary electric outlets.

Additionally, her piercings are not merely decorative but are referred to as "modulating electrodes" or "resistive electrodes." Their function is to regulate the electrical signals, preventing excessive current from reaching sensitive areas and ensuring a safe and effective ECT process. These modulating electrodes use materials with specific resistive properties to control the flow of electricity, much like variable resistors in electronic circuits, ensuring precise modulation and safety.

[vulpisnocturna]

Writing tips: How to describe depression with body language

WARNING: may be triggering to some; not meant to diagnose, only as a tip for writing characters suffering with mental health issues

Depression is usually different for everyone, but there are several symptoms that can be expanded upon and explored. Everyone is familiar with the concept of depression, but there’s a lot of physical responses that are visible and can also help in show-don’t-tell writing.

1. Depressed mood: pretty self-explanatory. Downcast eyes, unfocused gaze, downturned lips, sluggish movements, slow or slurred speech

2. Anhedonia (loss of interest in pleasurable activities): your character may be wandering, turning down offers, wanting to do something relating to a hobby but being unable to start or concentrate, other people may notice lack of passion, listless eyes, numbness

3. Loss of appetite/Weight loss or gain: playing with food, not having the energy to cook meals, eating the same thing over and over again, skipping meals, forgetting to eat until stomach is rumbling, eating to fill metaphorical emptiness, eating out of boredom, snacking instead of cooking meals, visible changes in weight and/or strength

4. Insomnia/Hypersomnia: struggling to fall asleep, turning and turning in bed without finding a comfortable position, waking up several times at night and struggling to fall back asleep, depression naps (usually lasting several hours), being sluggish, bags and shadows under eyes, taut, sallow skin

5. Psychomotor retardation/agitation: slow speech and movements, very little movement, delayed answers and physical responses; OR bouncing legs, wringing hands, nail biting, quick replies, nervousness

6. Fatigue: breathlessness, tiredness, weak legs and muscles

7. Diminished concentration: can be shown through character’s hobby (blank page for a writer, rereading the same paragraph over and over again, unsatisfactory work etc.), muffled sounds in conversations, lessons/lectures/work, easily avoidable mistakes slipping past character’s eyes

8. Feelings of worthlessness or guilt: recurring deprecating/horrible comments about skills/appearance/behaviour etc.,

7. Recurrent thoughts of death/ideation: not going to get into it, pretty self-explanatory.

General behaviours:

Again, this changes from person to person. As a generalised theme, people suffering from depression have a hard time with daily tasks. Brushing teeth, showering, food shopping, cleaning, tidying up, chores etc.

Also, don’t say a character feels depressed. Depression often feels like apathy, boredom, frustration, and sometimes, very intense anguish and hopelessness. Imagine the range of human emotions as a line. Depression is a line parallel to that but much lower, more muffled. It feels like a bubble that muffles feelings and the world around someone. It feels like trudging through mud to complete the simplest tasks. You may slow down the pacing to help the reader see just how long and exhausting every little action is, place a lot of inactivity inbetween actions, staring at walls etc.

A character with depression may also have very low libido, with difficulty orgasming, not wanting sex but desiring intimacy, mind wandering during sex etc.

Meds and healing

Medication can take up to 6 weeks to start to show results. Side effects in those 6 weeks range from nausea to dizziness, fatigue, migraines, and most of all, a feeling of constant apathy. Emotions are either not felt or being felt much less. That includes hopelessness as much as joy, excitement, sadness etc.

After those 5-6 weeks, character may notice the range of their emotions is widening. They feel more, more often. They may cry at a touching scene in a film, laugh or suddenly feel hopeful or happy or excited about a small thing. It’s fleeting, but human emotions actually last very little time. Don’t jump into happiness. For many depressed people, healing looks more like feeling different emotions more frequently, having slightly more energy, having inspiration for a painting, a story, a walk in nature. Healing looks very subtle, it’s a continuous process.

[dorianbrightmusic]

Saw the tag so wanted to send an ask! Do you want to talk/infodump about the history of antipsychotics and how that relates to ASD because that sounds fascinating.

oh my god i got asked to infodump about my most special of interests. thank you so much, most-definitively-a-human, you have made my day.

Disclaimer: I am not a psychiatrist or mental health professional, and I have no experience of either psychosis or taking psychiatric medication, so I can't promise that the facts are 100% perfect, nor that I have an understanding of what these facts mean in day-to-day life. But the least I can do is try to understand, and hope that someone else finds this interesting, or, better yet, useful.

I cannot be bothered tracking down all my sources again, so if anything in this post is interesting to you, please fact-check it, because I can't promise it's going to be right. This is medical information, so, as this is a rambling tumblr post, please take it with a grain of salt.

Skip to the end for the discussion of how autism, schizophrenia, and the antipsychotics are linked. Most of this is just me infodumping about antipsychotics, since I find them so fascinating for some reason.

Trigger warning: This post discusses medical abuse of people with severe mental illness and neurodevelopmental disorders, as well as the side-effects of psychiatric medication. There is also some discussion of self-harm in autism. As such, tread carefully.

A short(-ish) history of antipsychotics

In 1953, a new medication hit the market. Its name was chlorpromazine, and it belonged to a family of chemicals called the phenothiazines. The phenothiazines contained a lot of very, very revolutionary/historically significant meds – some highlights include methylene blue, an antimalarial that happened to be the first ever fully synthetic medication (which, due to its original purpose being 'fabric dye', had the convenient side effect of making your urine go blue); and phenbenzamine, which was not the first antihistamine ever (that honour goes to piperoxan, which is too toxic to use in humans), but was the first that was safe for use in humans. Phenbenzamine was very, very sedating, and from it, we got another compound, fenethazine. From fenethazine, we then got two derivatives: promethazine, and chlorpromazine.

Promethazine is an antihistamine, and like most old antihistamines, it's very sedating. As such, scientists tested whether promethazine worked for sedating people—and, indeed, it worked as a pretty good sedative. Its younger cousin, chlorpromazine, synthesised in 1950, also was very, very sedating. So, someone gave it to a psychiatric patient who was having a manic episode, and then, something cool happened. That is, the manic patient wasn't manic anymore.

Okay—so, chlorpromazine was sedating in a way that meant it could have some potential for previously difficult-to-treat psychiatric syndromes. (From memory, I'm fairly sure that lithium was around at the time, but frustratingly, not all mania responds to lithium. I don't know whether this patient had been trialled on lithium—all I know is that chlorpromazine worked for him.) So, it was trialled on quite a few psychiatric patients with schizophrenia, and they, too, seemed better.

Now, chlorpromazine, being related to promethazine, had a similar side-effect profile to most old antihistamines. That is, it made you eepy beyond belieepy (i'm sorry). This sedation was also accompanied, rather horrifyingly, by apathy, psychomotor retardation (thinking and moving much slower—I once saw someone online liken it to moving 'through molasses'), and emotional quieting. This triad—not moving, not wanting, and not expressing—was known as neurolepsis, and was originally thought to indicate that the drugs were working well. However, this wasn't necessarily true—in part, that's because schizophrenia spectrum disorders have negative, as well as positive, symptoms, and neurolepsis is basically a combination of actively worsened negative symptoms and physical/mental slowing. So, chlorpromazine made the psychosis better, but also induced neurolepsis, as well as several other side-effects (including but not limited to: reversible Parkinson's-like motor symptoms; orthostatic hypotension, which is when your blood pressure plummets when you stand; and anticholinergic effects, which I'm going to get back to later). Chlorpromazine was wonderful because it meant that finally, patients could deal with psychosis in a way that meant they didn't have to be institutionalised, and because it meant that much, much worse treatments (looking at you, insulin shock therapy) could finally be discarded. Chlorpromazine was awful, because, in addition to its awful side-effects, it wasn't always given consensually, and could be used to abuse and harm patients. Such is still an ongoing problem with antipsychotics—while they have revolutionised psychiatry and allowed many people to live much, much better lives, they've also indubitably been used to harm so many people. This is why it's crucial to have informed consent in psychiatry—and while I don't know how to handle this when a person is going through florid psychosis and is probably very, very scared, we ought to do much better than we are at the moment.

Due to the neurolepsis-inducing side-effect profile, chlorpromazine was deemed a neuroleptic. Most people will use the terms 'neuroleptic' (neurolepsis-inducer) and 'antipsychotic' interchangeably—however, the categories are a venn diagram, not a circle. There are some antipsychotics with only very mild neuroleptic effects (we'll get back to this), and some neuroleptics that aren't antipsychotic—for example, if you've ever the taken over-the-counter antinauseal/migraine relief drug called metoclopramide (Anagraine, Paramax, MigraMax, Metozolv, Reglan, etc), you've taken a neuroleptic. Neuroleptics are dopamine antagonists—that is, they bind to the receptor for dopamine in the brain, which means dopamine can't bind to that receptor, so you can't get the effects of dopamine at that bit. This basically explains neurolepsis as a syndrome, since dopamine is associated with reward pathways and movement; less dopamine in the reward pathways -> emotion blunting, lost motivation; less dopamine in the movement pathway -> i can't fricken' move, can't fricken' move emotionally, Parkinson's-like symptoms (Parkinson's is in part due to a dopamine deficiency in certain movement-related bits of the brain).

The antipsychotics allowed for de-institutionalisation to occur, and also gave rise to the tricyclic antidepressants, as imipramine (the first tricyclic antidepressant) is a chlorpromazine derivative. Fun! Problem was, these older psychiatric drugs tended to have fairly intolerable side-effects. So, the first-generation antipsychotics were by and large very neuroleptic—as such, we needed less neuroleptic antipsychotics for them to be tolerable. This started to happen around the 1990s and onwards, when the second-generation antipsychotics (SGAs)—olanzapine, risperidone, amisulpride, aripiprazole, quetiapine, etc.—started coming out. These SGAs bound to serotonin as well as dopamine receptors, and tended to have fewer motor side-effects than their older counterparts. They came with their own set of extra side-effects, however—some that come to mind are prolactin elevation (sexual side-effects), and appetite increases or decreases (this is not necessarily a bad thing)—but they're generally considered more tolerable, and while they're sedating, they're considered not to induce neurolepsis to the same degree. As such, they're called atypical (where typical means 'cue the neurolepsis and motor symptoms).

The problem with the typical/atypical split, however, is that most atypicals aren't quite as atypical as they're said to be. Every single atypical antipsychotic except for quetiapine and clozapine can still be linked to motor symptoms, and all of 'em can be linked to sedation of some degree. Moreover, one nasty motor side-effect of neuroleptics AND antipsychotics is this thing called tardive dyskinesia—tardive meaning late-onset, dyskinesia meaning unwanted/uncontrolled movements. So, over time, we go from Parkinson's-like symptoms (less movement) to tardive dyskinesia (more, unwanted movements), which is irreversible and sometimes progressive—the only way to deal with it is to switch to another antipsychotic and hope that it doesn't have the same effect, which is great, except if you've otherwise got a nice balance of symptom management and side-effects, that's a horrible curveball. The atypicals are said to cause tardive dyskinesia at much lower rates... except people still get TD on the atypicals. Moreover, most folks who are still taking typical antipsychotics have probably been on them longer than those on the atypicals, since people don't tend to try chlorpromazine first when quetiapine or olanzapine is more likely to do a better job of attenuating psychosis while inducing fewer adverse effects. As such, part of the difference in TD rates may be due to time, since TD develops in the long term. So, most atypicals aren't as atypical as is said.

Moreover, to split more hairs, just as antipsychotics and neuroleptics are a Venn diagram, SGAs and atypicals are also a Venn diagram, rather than a perfect overlap, due to the existence of one pesky compound called clozapine. Clozapine is pesky on several levels. Clozapine is reserved for those who've tried at least two other antipsychotics and found that they didn't fit, and this is because of its side-effects. Clozapine has a small chance of a potentially life-threatening side-effect called agranulocytosis—technically, almost all antipsychotics can cause agranulocytosis, but clozapine is the most likely to do it. If you get regular blood testing, which you will, if you take clozapine, you'll probably be fine. Otherwise, clozapine is the most atypical antipsychotic we have side-effects wise (of course, YMMV for individuals, since the human body doesn't behave according to textbooks), though it still has MANY side-effects, and it's also more likely than the others to be very effective for attenuating psychosis. (I say 'likely' because everyone's brain chemistry is different, so saying 'this drug is better than this drug' just isn't true, because different compounds work differently for different people. Some people will benefit nicely from haloperidol or perphenazine, others from ariprazole, and others will benefit most from taking mood stabilisers, instead of antipsychotics.) Clozapine is also a somewhat old antipsychotic, having been first put onto the market in 1972. But it tends to get lumped in with the SGAs simply because it's so atypical, which leads me back to the point: most atypicals aren't 100% atypical, and drug categorisation in psychiatry is confusing.

One other side-effect that antipsychotics tend to have is that they're usually very anticholinergic. Anticholinergic drugs reduce levels of a neurotransmitter called acetylcholine, which is very important for memory, movement, and so, so much more. However, the reason I mention memory is that most antipsychotics are contraindicated (recommended against) in those with dementia-related psychosis, primarily since depleting memory chemicals is the last thing you wanna do in someone with a major neurocognitive disorder. This is also why we need to be careful prescribing anticholinergics in those over 65. For the record: most severe mental illnesses tend to have some degree of neurodegenerative effect, which is why medication is so, so important, as it prevents that illness-related neurodegeneration: as such, taking an antipsychotic will prevent schizophrenia/bipolar/major depression-related cognitive decline and worsened illness, but may also have some subtle cognitive effects that probably balance out with those of the illness. It's something to monitor over time, but not something to be scared of.

I've harped on a lot about SIDE EFFECTS SIDE EFFECTS SIDE EFFECTS, so this is a reminder—if the name of a certain medication has been brought up here as associated with a side-effect, that doesn't mean the medication is necessarily bad. Antipsychotics have done a lot of good for many people, and so long as they are prescribed consensually, they will continue to be invaluable.

Also: not everyone who takes an antipsychotic has psychosis, and not every with psychosis takes antipsychotics. Medications don't necessarily indicate what illness someone has—they just help with symptoms, and antipsychotics can help with a heckuva lotta symptoms when used well.

Okay, great. How does this relate to autism, aside from that being proof that you, the author, meet criterion B3 for ASD?

We're almost there.

Several early theories of autism conceptualised it as a pervasive, childhood-onset form of schizophrenia ('childhood schizophrenia' and 'autism' have historically been used synonymously at times). Notably, several of the negative symptoms of schizophrenia spectrum disorders can be considered similar to the executive and social symptoms of autism—autism has its own positive set of symptoms, and schizophrenia its own positive symptoms, but there's an overlap between negative symptoms of the two. Autism was originally the name Eugene Bleuler gave to the way schizophrenic patients tended to withdraw into a fantasy world of their own—that is, withdrawing into an inaccessible inner world, rather than reality. While schizophrenic autism isn't nearly as relevant a clinical concept anymore, it's kinda funny how the two diagnoses diverged from that point.

It's also worth noting that schizophrenia spectrum disorders are probably neurodevelopmental, and both schizophrenia-spec disorders and autism feature enlarged ventricles in the brain. But correlation is not causation—this commonality may not mean anything. In schizospec disorders, ventricle enlargement tends to link to greater untreated duration of illness (as a visible sign of neurodegeneration), while in autism, I think it's just there. Not sure on that one, though. Not all people with ASD or schizospec disorders necessarily have enlarged ventricles, either—it's just a thing that seems worth noting.

Further, the predominant theory of how schizophrenia spectrum disorders work is that there is dopamine dysregulation—that is, some bits of the brain are getting too much, causing positive symptoms, and others are not getting enough, causing negative symptoms. Either that, or dopamine metabolism isn't working properly. We largely figured out that dopamine is probably involved in schizospec disorders by working backwards from the mechanism of action of the antipsychotics: that is, neuroleptics suppress dopamine, and dopamine suppression makes psychosis less bad—therefore, dopamine is involved in psychosis. But it's likely more complex than that, in part because not all people with schizospec disorders will respond to antidopaminergic drugs, and in part because SGAs are generally more likely to be effective than first-gen antipsychotics, and SGAs target more than just dopamine. One other theory posits that NMDA, which is a subtype of the neurotransmitter called glutamate, may also be involved. I'm not going to try to explain it here, since I don't know enough about the NMDA theory to be able to coherently string together a sentence about it. But, keep reading.

We don't entirely understand the mechanism behind autism. It probably involves synaptic pruning to some extent. It may also involve having an overactive brain, in part due to lack of pruning meaning that there is no brain highway so much as a network of ratruns that get clogged up very easily, and in part because GABA, the main inhibitory neurotransmitter we have, isn't doing something right. I think it's interesting that NMDA, a form of glutamate, might have links to psychosis, and that autism also probably involves something weird with glutamate, but I also don't know enough to say whether this is just a weird coincidence or if it's actually relevant. Nevertheless, even if it is a coincidence, I do find it funny to note these commonalities considering the historical links between the diagnoses.

It's also notable that autistic people experience psychosis at higher rates than allistic folks—I'm pretty sure schizospec disorder rates are also elevated among autistic folks—and I'm semi-sure autism is also more common in those with schizospec disorders than in those without.

Okay, now to where the meds come in.

Autism can cause varying levels of disability, ranging from those who need relatively little support to those who need full-time care. Often, higher support needs (HSN) autistics tend to have more dramatic self-injurious behaviours, and may struggle more with controlling aggression, with eloping, and other behaviours that are harmful to both themselves and others.

And I'm less-than-comfortable with how modern psychiatry has chosen to deal with this.

The only drug that's approved for treating these behaviours in ASD is risperidone, a second-gen antipsychotic. Some people will find that risperidone works really well for their psychosis—it's an effective drug! —but when it's used in ASD, it's not there to treat psychosis, usually, but to treat aggression, self-injury, and such.

Thing is, the use of risperidone for this purpose is basically an attempt to sedate the autistic child into not doing these things. I'm a low support needs (LSN) autistic who's never taken psychiatric medication, so it's not really my place to judge this as a tactic. I understand that things that some of us initially flinch at, such as putting HSN autistic children on leashes, is the right thing to do if the child is likely to elope, and I understand that if a child is going to hurt themself badly, they need help. But on the other hand, I have reservations since antipsychotics have been used unethically through history, and continue to be used unethically in certain situations. In some cases, antipsychotics may be helpful for autistic children, and I don't know enough to comment, but it's also profoundly uncomfortable to contemplate the fact that certain medications that are infamous for having horrible side-effects are being used on people who may not be able to provide informed consent. It's an ethical conundrum, since if it is the best way to prevent harm, then it's important that we don't flinch on instinct, but I also really, really hope that the HSN autistic people's needs and comfort are being taken into consideration in these circumstances, since both historically and today, HSN autistic people have been treated as subhuman in so, so many circumstances.

[cannabiscomrade]

if you have GI problems and mental health and/or neuromotor conditions make sure you are always asking what drugs they're giving you for nausea in the ER. Informed consent is a patient right and they should never be giving you drugs without telling you what they are for.

Reglan/metoclopramide is a prokinetic drug that can cause tardive dyskinesia and is black box warned for it- yet ER providers will throw it at patients without informed consent. This is still a rare side effect but people who have had TD before, or people with neuromotor disorders like Parkinsons should never be given this drug.

Compazine and droperidol are both antipsychotics that act as secondary antiemetics (anti-nausea) but they commonly cause akathisia, which is extreme psychomotor restlessness. It is absolutely awful- like overwhelming IV benadryl drowsiness with restless limbs from hell. You cannot stop moving but all you want to do is sleep.

These are drugs that are commonly overprescribed in the ER that can have severe side effects. I ended up putting all three of these on my med reaction list.

[lilliesofinspirationvalley]

(about the dream bbq post) aren’t daturas like… the worst hallucinogen known to man? Known to give people horrifying trips with effects that linger for months/years? I wonder if that’s significant. I saw someone else point out the fork frog guy looks like a mad cow disease prion, + the spirals in the ballerina scene and the paper streamers also resemble prions. Both these things feel similarly related to losing one’s mind.

Ayo, you’re onto something!!!

This is an ask I recieved relating to my first ENA: Dream BBQ analysis I posted! Be sure to check that out if you haven’t already! I definitely plan to write more up ;p

Let’s look into what Mabel (I shall call this user such based on the first part of their username) brought up~!

Make Me Delirious

Daturas are a hallucinogen, more specifically a deliriant. Here are summaries about deliriants and delirium I found from Wikipedia

Already, we can see some fascinating points being brought up.

Deliriants inhibit the neurotransmitter acetylcholine, which is a key part of the autonomic nervous system (aka, how our body and brain react to our surroundings). It’s an internal transmitter in the sympathetic nervous system (which is responsible for the fight-or-flight response), and the primary neurotransmitter/final product of the parasympathetic nervous system (which helps you calm down and bring your body back to normal). It’s primary function is activating muscles… so shutting that down is pretty dangerous (especially in high doses).

Deliriants are known for causing… delirium (what a shocker lol). Delirium causes psychomotor changes (hyperactivity/hypoactivity/mixed), emotional and perceptual disturbances (such as hallucinations and delusions), and disrupt sleep-wake cycles.

Most plant deliriants are part of the Solanaceae/Nightshade family, which include plants such ad belladonna/deadly nightshade, and brugsmania/angel’s trumpets. Arguably, the flowers in the trailer also look like brugsmania… but whether they’re brugsmania or datura, they’re both deliriant flowers, so all of this still applies.

These plants have historically been used by indigenous cultures in the Americas (likely in extremely small doses) for assistance in traditions/rituals involving altered states. Such rituals involve communicating with ancestors, divination, and rites of passage, and are always used under supervision of a Shaman.

Prion for Info

First and foremost, what the heck is a prion? 

In case you haven’t taken biology yet, or forgotten those lessons from high school, the brain has a lot of normal cell proteins called prion proteins. They're an important part of our brain function... though we're still figuring out their specific purpose. Normal prion proteins look like this (pictures are from this video):

However, there are also misfolded, abnormal prions that look like this:

These are usually referred to simply as "prions" (we specify the normal, healthy ones as prion proteins), and they're able to spread their abnormal/misfolded structure onto the normal variants of the prion protein. This chain reaction is a major causative of neurodegenerative disorders, primarily via spongificatioxn of the brain (destroying the brain's gray matter). This can lead to severe symptoms such as rapid dementia, ataxia (loss of limb control), and insomnia. Once the disease starts, it's incredibly rapid and always fatal.

One of these neurodegenerative disorders that is especially prominent is Bovine Spongiform Encephalopathy, also known as BSE or Mad Cow disease. As the names suggest, this disease primarily harms cattle... but humans are able to become infected by it.

How? By consuming contaminated beef.

What do you usually eat at a barbecue?

"Where is my mind" by the Pixies at full blast

In all seriousness, all of these connections to literally losing your mind and dying from madness are all very concerning. BBQ!ENA is going to go through so much more (as if the two other forms of her didn't allude to that already), and I'm very worried about her.

[transgenderer]

The Discovery of the first antipsychotic, Chlorpromazine, AKA Thorazine

In 1933, the French pharmaceutical company Laboratoires Rhône-Poulenc began to search for new anti-histamines. In 1947, it synthesized promethazine, a phenothiazine derivative, which was found to have more pronounced sedative and antihistaminic effects than earlier drugs.[50]: 77  A year later, the French surgeon Pierre Huguenard used promethazine together with pethidine as part of a cocktail to induce relaxation and indifference in surgical patients. Another surgeon, Henri Laborit, believed the compound stabilized the central nervous system by causing "artificial hibernation", and described this state as "sedation without narcosis". He suggested to Rhône-Poulenc that they develop a compound with better stabilizing properties.[51] In December 1950, the chemist Paul Charpentier produced a series of compounds that included RP4560 or chlorpromazine.[6]

Chlorpromazine was distributed for testing to physicians between April and August 1951. Laborit trialled the medicine on at the Val-de-Grâce military hospital in Paris, using it as an anaesthetic booster in intravenous doses of 50 to 100 mg on surgery patients and confirming it as the best drug to date in calming and reducing shock, with patients reporting improved well being afterwards. He also noted its hypothermic effect and suggested it may induce artificial hibernation. Laborit thought this would allow the body to better tolerate major surgery by reducing shock, a novel idea at the time. Known colloquially as "Laborit's drug", chlorpromazine was released onto the market in 1953 by Rhône-Poulenc and given the trade name Largactil, derived from large "broad" and acti* "activity".[6]

Following on, Laborit considered whether chlorpromazine may have a role in managing patients with severe burns, Raynaud's phenomenon, or psychiatric disorders. At the Villejuif Mental Hospital in November 1951, he and Montassut administered an intravenous dose to psychiatrist Cornelia Quarti who was acting as a volunteer. Quarti noted the indifference, but fainted upon getting up to go to the toilet, and so further testing was discontinued (orthostatic hypotension is a known side effect of chlorpromazine). Despite this, Laborit continued to push for testing in psychiatric patients during early 1952. Psychiatrists were reluctant initially, but on 19 January 1952, it was administered (alongside pethidine, pentothal and ECT) to Jacques Lh. a 24-year-old manic patient, who responded dramatically, and was discharged after three weeks having received 855 mg of the drug in total.[6]

Pierre Deniker had heard about Laborit's work from his brother-in-law, who was a surgeon, and ordered chlorpromazine for a clinical trial at the Sainte-Anne Hospital Center in Paris where he was Men's Service Chief.[6] Together with the Director of the hospital, Jean Delay, they published their first clinical trial in 1952, in which they treated 38 psychotic patients with daily injections of chlorpromazine without the use of other sedating agents.[52] The response was dramatic; treatment with chlorpromazine went beyond simple sedation with patients showing improvements in thinking and emotional behaviour.[53] They also found that doses higher than those used by Laborit were required, giving patients 75–100 mg daily.[6]

Deniker then visited America, where the publication of their work alerted the American psychiatric community that the new treatment might represent a real breakthrough. Heinz Lehmann of the Verdun Protestant Hospital in Montreal trialled it in 70 patients and also noted its striking effects, with patients' symptoms resolving after many years of unrelenting psychosis.[54] By 1954, chlorpromazine was being used in the United States to treat schizophrenia, mania, psychomotor excitement, and other psychotic disorders.[14][55][56] Rhône-Poulenc licensed chlorpromazine to Smith Kline & French (today's GlaxoSmithKline) in 1953. In 1955 it was approved in the United States for the treatment of emesis (vomiting). The effect of this drug in emptying psychiatric hospitals has been compared to that of penicillin and infectious diseases.[52] But the popularity of the drug fell from the late 1960s as newer drugs came on the scene. From chlorpromazine a number of other similar antipsychotics were developed. It also led to the discovery of antidepressants.[57]

[mcatmemoranda]

I recall two years ago on my peds rotation, there was a baby who was diagnosed with infantile spasms. I just remember the fact that prognosis was poor. It causes developmental regression and delay. It's diagnosed in pts with clinical features and hypsarrhythmia on EEG. The treatment depends on the cause of the disorder. This is from UpToDate:

Clinical features – Infantile spasms, also known as infantile epileptic spasms syndrome (IESS), represent an age-specific convulsive disorder of infancy and early childhood. The triad of infantile spasms, arrest of psychomotor development, and hypsarhythmia is known as West syndrome.

•Most children with infantile spasms present between three and seven months of age; onset after 18 months is rare.

•Spasms are usually symmetric contractions of flexor or extensor axial or limb muscles. They vary in pattern, intensity, duration, and extent. Most spasms occur in clusters of 2 to more than 100 over one to several minutes.

•Spasm or spasm clusters may be unrecognized when they are brief and involve limited musculature. Parents typically underestimate seizure frequency by a factor of 5 to 10.

●Diagnosis – The diagnosis of infantile spasms in a patient with clinical features is confirmed by electroencephalography (EEG).

•The EEG should be of sufficient duration to capture an ictus as well as the characteristic interictal pattern of hypsarhythmia. The recommended approach is an overnight, 24-hour, inpatient video-EEG monitoring study.

•Hypsarhythmia on interictal EEG is an essential feature of West syndrome. The classic pattern of hypsarhythmia consists of very high-voltage, random, slow waves and spikes in all cortical areas. The spikes vary in duration and location. Hypsarhythmia varies with the sleep-wake cycle.

●Etiologic evaluation – Determining the etiology of infantile spasms is critical to directing treatment and informing prognosis. •Neuroimaging studies should be performed in all patients with infantile spasms; a magnetic resonance imaging (MRI) is the preferred imaging study because it may detect cerebral malformations, cerebral atrophy, delayed myelination, and other focal lesions not visible on CT scan.

•Further metabolic and genetic testing should be performed if an etiology is not identified after clinical evaluation that includes EEG and MRI.

Lennox-Gastaut syndrome — Some patients with infantile spasms develop a severe form of epilepsy known as Lennox-Gastaut syndrome. This syndrome includes characteristic types of seizures (typical drop attacks and axial tonic seizures) and specific EEG patterns. Children with infantile spasms of unknown etiology are less likely to develop Lennox-Gastaut syndrome compared with children who have a known etiology.

Developmental outcome — Developmental delay occurs in 75 to 85 percent of patients with infantile spasms.

●Monitoring treatment response – Use of overnight inpatient video-EEG to evaluate treatment response is ideal; however, outpatient EEG studies up to 240 minutes can be considered as an alternative. Clinical observation frequently misses subtle spasms, and shorter EEGs are less sensitive for detecting hypsarhythmia.

●Duration of initial therapy – Hormonal therapy is generally given at the maximum dose for 14 days, followed by a gradual taper starting on day 15. Vigabatrin is generally continued for six months in patients who respond to therapy, with continued evaluation for toxicity.

●Relapses – For infants who relapse after termination of initial therapy, a second course of the agent that was effective in obtaining control should be administered.

●Refractory infantile spasms – Lack of a successful response to initial therapy within two weeks should prompt a change in treatment strategy. Alternatives for children who do not respond to hormonal therapy or vigabatrin include:

•Sequential therapy – Our general approach after failure of the first standard treatment (hormonal or vigabatrin) is to switch to the alternative standard treatment.

•Combination therapy – Treatment with both hormonal therapy and vigabatrin may be more effective than hormonal therapy alone.

•Ketogenic diet – A ketogenic diet may control spasms in cases refractory to first-line treatment.

•Surgery – Patients with refractory infantile spasms who have focal brain lesions and no evidence of diffuse brain damage or degenerative or metabolic disease should be evaluated for early epilepsy surgical intervention.

●Outcomes – The overall prognosis for children with infantile spasms is guarded. Mortality ranges from 3 to 30 percent, and, most patients will have impaired neurodevelopmental outcome and/or epilepsy. There is insufficient evidence to conclude that successful treatment of infantile spasms improves the long-term prognosis, although that is suggested by some observational data.

Treatment:

Most infants – For most children with infantile spasms (also known as infantile epileptic spasms syndrome [IESS]), we suggest initial treatment with hormonal therapy using corticotropin injection gel (adrenocorticotropin hormone [ACTH]) or oral glucocorticoids rather than vigabatrin. This recommendation is based upon advantages of hormonal therapy in effectiveness, risk profile, and longer experience compared with vigabatrin.

•Infants with tuberous sclerosis complex – For these infants, vigabatrin is first-line therapy for infantile spasms.

[I would just refer to neurology for management]

•Adverse effects

-Hormonal therapy – Adverse effects are common and include hypertension, irritability, infection, reversible cerebral atrophy, and rarely death due to sepsis. Monitoring should include measurement of blood pressure (baseline and once weekly) and serum glucose, potassium, and sodium levels (baseline and every other week). Infectious contacts should be avoided, and infections should be treated promptly.

-Vigabatrin – Permanent visual field constriction due to retinal toxicity is a potentially severe adverse effect of vigabatrin. Ophthalmologic evaluation and monitoring is recommended.

[leebird-simmer]

Drug Abuse/Substance Use Disorder, pt. 3

Neurobiology of Addiction

Reward circuit: neural circuit responsible for the acute rewarding and reinforcing effects of abused drugs.

Neuroimaging confirms that human brains have a reward circuit similar to that identified in animals, and it is activated by both drug and non-drug rewards.

Major structures:

Nucleus accumbens

Ventral tegmental area

Prefrontal cortex

Activation of the human reward circuit by expectation of monetary rewards

- Drugs that are addictive have a common property: they produce psychomotor activation in some part of their dose range.

- This means that at some levels of their consumption, these drugs make the user feel energetic and in control.

- Because of this commonality, it is proposed that all addictive drugs must interact with the same target in the brain.

Rats will press a bar for electrical stimulation of the dopamine system in the brain and stop if the dopamine system is blocked.

Abused drugs tend to cause the release of dopamine or to prolong its availability, either directly or indirectly.

Drugs that block dopamine receptors or decrease the availability of dopamine are not substances that people abuse. For example, people do not abuse the drug Haldol, a major tranquilizer.

- Activation of the mesolimbic dopamine pathway plays an important role in the rewarding and reinforcing effects of abused drugs.

- Dopamine neurons in the ventral tegmental area (midbrain) release dopamine into the nucleus accumbens (basal ganglia).

- There is a difference between “liking” a drug (euphoria) and “wanting” a drug (craving).

- As drug addiction develops, the user experiences an increase in “wanting” the drug, even though there is no change (or even a decrease) in “liking” the drug.

- Wanting and liking may be produced by different parts of the brain.

Wanting: Mesolimbic dopamine system (VTA ---> NAcc)

Liking: Opioid neurons

Prefrontal Cortex

- The PFC has a role in executive function: planning, organization, problem solving, mental flexibility

- Also contributes to regulation of emotional & motivational processes

- Brain imaging studies show structural and functional abnormalities in the PFC in drug-addicted subjects.

- It is not clear whether structural abnormalities precede addiction or if they are caused by repeated drug use.

- Imaging studies using structural MRI show reduced gray matter volume in many drug addicts, sometimes even after long-term abstinence.

- There is also a functional disruption of the glutamatergic pathway from the PFC to the NAcc.

- By interfering with normal transmission in this pathway, the changes impair the ability of the PFC to mediate response inhibition and impulse control.

- Insular cortex = a portion of the cortex within the lateral sulcus

- Among other functions, it’s responsible for interpersonal experience

- Feeling of social exclusion is associated with drug addiction, and both are associated with the increased activity of the insula

Is addiction a disease?

- Earlier views saw excessive drug use and addiction as signs of personal and moral weakness (moral model).

- The disease model or medical model of addiction arose from work on alcoholism. It is based on the evidence of dysregulation of brain function (neuroadaptations) caused by repeated drug exposure.

[maaarine]

The Song of the Cell: An Exploration of Medicine and the New Human (Siddhartha Mukherjee, 2022)

“There was a picture in her office of a stream with a deep sinkhole in the middle, where water gushed in from all sides.

“A patient sent me that picture to describe her depression.” Another void, a hole. Vertical, inescapable traps.

When Mayberg turned the stimulator on, the woman said she saw herself lifted out of the sinkhole and sitting on a rock above the water.

She could see her former self in the hole—but she was on a rock, sitting above the hole.

“These pictures, these descriptions tell you so much more than checking boxes on a depression scale.”

Mayberg treated five more patients with DBS before publishing her data. Here’s what happened when the stimulator was turned on:

“[a]ll patients spontaneously reported acute effects including 'sudden calmness or lightness,’ ‘disappearance of the void,’ sense of heightened awareness, increased interest, ‘connectedness,’ and sudden brightening of the room, including a description of the sharpening of visual details and intensification of colors in response to electrical stimulation.”  (…)

Another patient remembered the precise moment of the onset of her disease. “She was walking her dog along a lake, and felt that all the colors had gone. They had become black and white. Or just gray.”

When Mayberg turned the DBS on, the patient looked startled. “The colors just popped.”

Yet another woman described her response as if a season was about to turn. It wasn’t spring yet, but she felt the portent of spring. “The crocuses. They just came out.”

“There are still all sorts of mysteries that I don’t understand,” Mayberg continued.

“You know that depression has a psychomotor component to it— patients often cannot move. They lie in bed, they become catatonic.

When we turn the DBS on, patients want to move again, but the activities that they want to do involve cleaning out rooms. Taking the trash out of the kitchen. Washing dishes. (…)

The point is this: the electrical stimulation of cellular circuits is trying to become a new kind of medicine. Some of these attempts might succeed; some might fail.

But if these attempts garner even a measure of success, they will generate a new kind of person (and personhood)—humans implanted with “brain pacemakers” to modulate their cellular circuitry.

They will presumably wander about the world with rechargeable batteries in fanny packs and move through airport security saying:

“I have a battery in my body with an electrode through my skull that sends impulses into the cells of my brain to regulate my mood.” Maybe I will be among them.”

[et-6182022]

Maxims and Levels of Teaching.

Maxims and Levels of Teaching Maxims are concise and memorable statements that convey a general truth or rule of conduct. They often serve as guiding principles or advice. In the context of teaching, maxims can provide valuable insights into effective pedagogical practices.

Levels of teaching refer to the different stages or stages of instruction that educators can employ to facilitate learning. These levels often involve varying degrees of guidance and support, from providing direct instruction to fostering independent learning.

Maxims of Teaching Maxims are simple guidelines or concepts that assist teachers make judgements and act appropriately during the educational process. According to Richard's definition: "Teacher's maxims appear to reflect cultural factors, belief systems, experience, training and the understanding of which maxims teachers give priority and how they influence teachers' practices is an important goal in teacher development" .

Contents of Maxims of Teaching In the classroom, the teacher can choose the activities that will help the students understand the material. Therefore, the maxims of teaching must include the following content:

Simple to complex: A child's psychology dictates that he prefers the information to be presented simply. As a result, the instructor must progress from teaching basic facts to guiding students towards a somewhat more challenging level.

Known to unknown: When teaching begins with past knowledge and progresses to new subject to be taught, the learner finds it easy to transition from known to unknown.  

Concrete to abstract: This is based on psychological principles. A student finds it easy to relate to anything when he perceives it in its actual, physical form. He might then be persuaded to focus on more abstract and immaterial information or occurrences.

Direct to indirect: Whatever has to be taught cannot be presented to the learner right away. It should be related to the things he already knows. e.g. If the topic 'Acid' is to be taught, students should be questioned about sourness, sour fruits, the reason of sourness, and citric acid before learning about mineral acids.

Particular to general: Specific facts are supplied to the learners, which are then organised to form a generalised statement.

Analysis to synthesis: It is founded on the concepts of associative psychology. Whenever we come across a new theory, we attempt to analyse it and then incorporate it into another. For example, in biology, we first learn about cells, followed by tissues and organs. Finally, we study the entire body, which is made up of several organs.

Empirical to rational: The learners are provided first-hand knowledge that is authentic and realistic, gained from their own experiences, before progressing to more balanced and sensible content.

Psychological to logical: It is considered during the pre-active phase of teaching, when the information is organised in such a way that the learner's psychology (such as interest, aptitude, and so on) takes precedence, and true teaching follows in a logical progression from simple to more complex.

Whole to part: According to insight theory, any object or experience should first be examined as a whole before being considered in parts. When a teacher delivers a concept or issue to students as a whole, they break it down into smaller units and deal with them.

Indefinite to definite: Teachers may have a clear idea of what will be taught in class, but students may not. As a result, the teaching approach should be such that students may gain direct information, which is only achievable if they are familiar with it. Levels of Teaching

When teaching occurs in the classroom, there must be a correct ranking of teaching levels. This has the potential to promote cognitive, psychomotor, and emotional development. Bloom developed a taxonomy that describes the levels of cognitive growth. The teaching level is required to raise the level of thought and learning. Hokanson and Hooper identify five stages of teaching. Each level builds on the preceding sort of activity.

Level-I: Reception: At this stage, the learner is present to receive information. The teacher must provide answers and responses. Many teachers tend to do all of their activities at this level, which does not produce good results. This level is simply a settling level for learners, both physically and intellectually. We can claim that there is one-way communication between teacher and students.

Level-II: Application: Now the interaction between the teacher and the learner begins. It could take the form of a query, an inquiry, or a discussion. At this level, the class gets more engaging and innovative. The level of thinking and analysis of concepts increases.

Level-III: Extension: As the term implies, the previously learnt content is expanded upon and applied to new contexts.

Level-IV: Creation: The learner's degree of knowledge has now increased to the point where he can solve an issue on his own. He can handle more complex problems and seeks multiple solutions. The teacher guides and supervises the students. Level-V: Challenge: Now the student is ready to push his own limitations. He is willing to approach obstacles with an adventurous mindset. . . . . . . . . .