#liedetector
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ilearnedthistodaysblog · 1 month ago
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#1155 How does a lie detector work?
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How does a lie detector work? Lie detectors work by recording breathing rate, pulse, blood pressure, muscular activity, and perspiration to look for any changes. They are not admissible in court because they don’t always work. The modern lie detector (polygraph) was created in 1945, but there were many steps along the way. The first polygraph was invented in 1895 by Cesare Lombroso, which measured changes in blood pressure. In 1904, Vittorio Benussi added a way to test breathing speed as well. An American called William Moulton Marston took up the idea of the lie detector and he worked hard to get it used in American courts. He also invented the Wonder Woman cartoon character as well, with her lasso of truth. A device that could measure skin response as well was first used in 1939 by the FBI. Further changes were added until there was a device in 1945 that could do most of what modern devices could do. Today, the recording is digital and all of the sensors are far more delicate, but the idea remains the same. The name polygraph was given to the machine in 1921. “Poly” is Greek for many and “graph” is Greek for writing. It was created in 1871 to apply to a machine that could read different bodily signals, not for the purpose of detecting lies. The basic idea behind a lie detector is that telling a lie and trying not to be caught is a stressful experience. People who read body language say that they can tell when someone is lying because of where they look, their body language, the words and grammatical structures they use, and a host of other things. They probably can, but someone who is adept at lying could work to cover these things. The theory behind a polygraph is that you can learn to mask your gestures, but you cannot mask your body’s natural functions. When you tell a lie you will get stressed and your body will have a stress response. Your heart rate will go up, your breathing will speed up, your blood pressure will rise, your muscles will tense slightly, and you will sweat more. That is what a polygraph is measuring and they are so delicate that they can measure even very slight changes. The heart rate, blood pressure, and breathing rates are fairly simple to measure, which is why the earliest polygraphs focused on those. Muscles tensing requires devices that can measure the electrical signals across muscles and sweating is measure in the same way. Sweat is measured with a galvanic skin response detector. When you sweat, your body releases water mixed with salt because it wants to make sure the salt levels in your body stay the same as you lose water. Salt conducts electricity more readily than just water or just skin and the detector can measure this electrical difference. When you go in for a lie detector test, the technician will wire all of the sensors to you. Before the test starts, the technician will stress how effective these tests are because that will increase the likelihood of a reaction when someone lies. The technician will ask a few questions to start with to gain a baseline and they will ask the person to lie once. The technician will announce that they detected the lie, whether they did or not, to emphasize the effectiveness of the test and to increase the stress a guilty person will feel. Then the technician will ask questions, mixing in questions that are not connected or questions they know to be true to make sure that their baseline is accurate. Afterwards, the technician will go over the data and look at the responses. In theory, tying these physical responses to the question will show when someone was lying. Polygraph technicians claim to be able to spot lies over 80% of the time. This is why polygraphs used to be admissible in court to help prove whether someone was guilty or innocent. They were disallowed when research revealed that they were actually far less effective than the technicians claimed. The problems are that innocent people can become extremely nervous when questioned in such a situation and produce a false positive. Another problem is that there are tactics to avoid a physical response on difficult questions. One is to pinch yourself really hard on all of the diagnostic questions. This will produce a pain response, which is identical to a stress response, making it impossible to tell lies from the truth. Another method is to just be calm. A third problem is that some people who have committed crimes don’t feel emotions in a normal way and would probably pass a lie detector. It is likely that innocent people have been found guilty and guilty people have been found innocent on the strength of polygraph results. And this is what I learned today. Liked this? Try these: - #388 How do metal detectors work? - #928 How does a motion detector work? - #100 Who came up with the phrase "flight or fight"? - #372 How does a smoke detector work? - #126 Is a space elevator possible? Sources https://www.researchgate.net/publication/232572993_Admissibility_of_Polygraph_Tests_The_Application_of_Scientific_Standards_Post-Daubert https://www.reddit.com/r/askscience/comments/l8me4e/how_do_lie_detectors_work_how_accurate_are_they/ https://en.wikipedia.org/wiki/Polygraph https://science.howstuffworks.com/question123.htm https://www.etymonline.com/word/polygraph https://www.healthline.com/health/why-is-sweat-salty#downsides Image By Federal Bureau of Investigation - https://multimedia.fbi.gov/large/3341, Public Domain, https://commons.wikimedia.org/w/index.php?curid=63821903 Read the full article
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ireland-lie-detector-test · 6 months ago
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lie detector
#liedetector #liedetection #ireland
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thelondonwhisperer · 1 year ago
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Thrilling premiere for Heart of Stone Netflix
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The Heart of Stone Netflix premiere last night at BFI Southbank was as thrilling as the film itself! 🏍️
With casino games, motorbikes, lie detector tests and more, this was one hell of a ride for a premiere.
Director Tom Harper took to the stage to introduce the film, before a prerecorded message from the actors (pre strike).
Head to my YouTube to see more of the in-screen intros ♠️
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accuratebodylanguage · 2 years ago
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Truth through body language and action build trust.
Connect with @JanetteGhedotte of @AccurateBodyLanguage to Discover, detect, and decode the words of deception and the BODY of TRUTH.
From Head to Toes, the BODY Always Shows the TRUTH..
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once-delight · 5 months ago
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It’d be funny if Anne Rice’s retcon that Lestat only ate evil doers during his time in New Orleans with Louis was one of the first thing Daniel debunks in his interview with him.
Lestat is ready to present this perfect picture of his misunderstood self, taking charge and charming as can be and starts out explaining that Louis in fact got it wrong, in fact he was only eating evil doers-
And Daniel is like:
Nice try even if I couldn’t read your mind I’d know that was blatant bullshit
And that’s when Lestat’s makeup cracks and he realizes fully what he’s gotten himself into
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dailyplanet-loislane · 4 months ago
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Old LIE DETECTORS
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monriatitans · 1 year ago
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I Debunked Every "Body Language Expert" on Youtube
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chronically-ghosted · 1 year ago
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WIP Title Game
@sp00kymulderr and @joelsgreys tagged me for this -- thank you so much my dears!
RULES: post the names of all the files in your WIP folder, regardless of how non-descriptive or ridiculous. let people send you an ask with the title that most intrigues them, and then post a little snippet or tell them something about it! and then tag as many people as you have WIPs.
stay gold, baby boy - (dieter bravo x f!reade) ((which shouldn't be a wip for too much longer))
secret santa gift (marcus moreno x f!reader)
i wanna do bad things with you part 4 (max phillips x f!reader)
heart of thieves (dave york x f!reader)
just one more thing part 3 (javier peña x liedetector!f!reader)
having fun with: @mysterious-moonstruck-musings @jupiter-soups @daddy-dins-girl @imaswellkid @avastrasposts
(also i know you tagged me in this @sp00kymulderr but i saw your post about ezra smut so consider this my humble request to get a snippet of that!)
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pantherxdrawz · 2 years ago
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May I offer you some of my Ace Attorney Poly ship hcs?
*Dumps Langwrightworth headcanons at your feet*
…………… -They’re all trans. That’s it that’s the thing. They’re all gayass Trans men. (Also I get to make the “Hey I payed a lot of money to wear my shirt like this!” Joke with Lang)
-Edgeworth is DemiAroAce and Gay, Phoenix is Bi, Lang is Omni and they’re all Poly
-Lang is usually the one to carry his partners around, Edgeworth could carry Phoenix, Phoenix could just kind of carry Edgeworth (his lower body strength was way better than his upper) and there’s no way ether of them where gonna try to lift Langs nearly 6ft ass, even though Edgeworth had no excuse being nearly the same height
But Lang? Lang can carry them both at the same time, just throws them both over his shoulders like potato sacks. Edgworth hates the carrying style, meanwhile Phoenix makes windows noises. Although sometimes he surprisingly and seemingly randomly switches it to Bridal style, yes carrying them both like that.
(This is just if I’m not using my Robot Edgeworth headcanon, if I was then Edgeworths would change to being able to also easily lift Phoenix or Lang, or them both at once, robot arms.)
-Yes they all spoon together sometimes, it’s usually, Lang is the big spoon, Phoenix is the little spoon, Edgeworth is the teaspoon (little spoon of the little spoon) yes they specifically say he’s the “teaspoon”
But sometimes the order changes, like Phoenix is now the big spoon and Lang is the “littlelittle” spoon, or Edgeworth is big spoon, etc.
-Phoenix would probably be the first to propose, unless Edgeworth beats him to it, Phoenix would propose by just straight up asking, hell, maybe even in the middle of watching TV,
Meanwhile Edgeworth would make sure to set up a nice perfect date, like a custom consort playing only their favorite songs, or a romantic fireworks show,
Point is he would have E V E R Y T H I N G pre-planned for it,
Basically Phoenix and Edgeworth would be propose racing meanwhile Lang is just there, watching his boyfriends race over proposing and just sits out of the race, finding it amusing.
-For how they all got together,
It started with Edgeworth unintentionally falling for Phoenix and trying to hide it, which he succeeded at for quite a while, but you can’t hide the gay forever Edgy. Meanwhile Phoenix had been in love with Edgeworth since childhood, after the trial event, but he didn’t do anything at the time because he didn’t realize at the time, actually he didn’t realize he was still in love until a while after seeing Edgworth again in the flesh, (even though he was literally still experiencing crush symptoms since college???)
Phoenix and Edgeworth got together first, during Phoenix’s Disbarment, Then bam the investigations events happen
and Edgeworth ends up accidentally falling for Lang right near the end of the second investigation games events, and vice versa.
After that Phoenix and Edgeworth talked it over (Phoenix had to fucking LieDetector him out of it-) and agreed to have an open relationship where they could date whoever outside of it just tell the other first so now Lang and Edgeworth where also dating
But eventually Lang met Phoenix and they eventually ended up falling for each other as well- So now those two where dating and now everyone’s dating each other-
oops it’s a poly now-
Also bonus for an OT4 version with Godot joining the poly I’m putting under a cut:
Yes I uh, also ship Langwrightworthdot/Langwrightworthmando I find it cute
which is probably unheard of by the fandom, I mean the only ot4 version I’ve seen so far is Gumshoe as the fourth partner-
But eh my ot4 edition of an ot3 my rules, I aM THE SOLO CHEF IN THIS KITCHEN
Also I’m mainly referring to him as “Diego” and not “Godot” here because calling him that is not just a post coma thing he actually goes back to being called that in events before arrest in canon
anYWAYS
-Godot/Diego is also under the trans umbrella in my hcs, like he’s a gender-fluid menace that is a pronoun thief, no not even your neos are safe.
He’s also Pan, as long as you aren’t an evil bitch xe’d date ya, and they’re not exactly poly, but she isn’t against the idea ether
-Godot/Diego would join the poly a while after he’s been released from jail, because after that he would have lost his grudge with Wright and would have maybe considered becoming friends, which they did
The WrightDot/Wrightmando in this poly would be enemies to friends to lovers, well, more like, Robocop visor guy with a random grunge against a random blue guy he throws coffee at to friends to lovers
-Diego would just be dating Phoenix at first, not the rest of the poly, yes they all know they all know, he just chose to just date Phoenix
and guess what, their first date is a coffee date.
-But eventually Diego would drop just dating Phoenix and said “fuck it I’m dating the whole poly.” Well then,
MOVE LANG YOUR NOT THE TALLEST IN THE POLY ANYMORE- (I checked the official heights, Phoenix is 5’9, Edgeworth is 5’10 Lang is 5’11 and Diego is 6’1)
-Now with the partner carrying this time around, Phoenix can just barely get Diego off the ground, this is exactly what he feared would happen if he attempted to lift Lang- Edgworth does a better job than Phoenix does at carrying him, but he still doesn’t do it very well, meanwhile Lang can also easily carry him, just like Phoenix and Edgeworth,
Lang can also still carry all of his partners at once but he now struggles a bit, just because it’s the weight of another fully grown ass man being added on to the combined weight of two, but he refuses to show said struggle and carry’s on
Meanwhile Diego can also lift all of his partners easily, No not fucking all at once- He’s not that crazy or confident in his strength to attempt that- But he can easily carry Phoenix, Edgeworth and Lang separately
(This is, again, just how it’d be if we’re not using my robot Edgeworth headcanon, if we were Edgeworth could just go “scoop.” *lifts all of his partners at once with his robot arms*)
-Yes at this point they’ve all dealt with the “I hate to break it to you-“ misunderstanding they all responded and explained differently, but the funniest one out of them all is that Diego, instead of explaining, does This:
Person: Um, Mr. Armando, I hate to break it to you but, your boyfriend? Phoenix? He’s cheating on you with Agent La-
Lang: *So happens to be walking into the room*
Diego, with Zero hesitation: *Proceeds to grab Lang by the collar while staring at the person dead in the eyes and proceeds to start making out with him*
Person:
Person: …w hat-
-Oh hey new proposal race- Damnit- This time Everyone’s in the race-
Edgeworth is back at it with the “must have perfect date planned to propose” while also attempting to do it before Phoenix asks it randomly while watching TV or somth- Lang is also planning on proposing, but not in a casual or traditional set, he wanted to ask while under the stars and moonlight (but no full moon cause werewolf hc- I don’t think that’s gonna go well) and Diego was gonna propose to the other three in another coffee date
-Yeah. Yeah at this point Trucy has not one not two but four dads. And they’re all gonna beat you up alongside Apollo if anything where to happen to her and it was your fault it happened.
-Also one more hc that’s not 1000% related to the ship but it is some shenanigan that happened at least once or twice,
If there’s ever a power outage, or the four are all together in a dark area, Instead of using the flashlights on their devices they go “Hey let’s use our boyfriend as a flashlight! *proceeds to grab Diego and aim him like a flashlight*”
so for context on this, by the time they’re all in a four person poly Diego would switch from the Robocop looking mask he had as Godot to red sunglasses which are actually a new technology that are glasses for blind people
…glasses fix all vision problems at this point ig-
and said glasses also glow in the dark, but they glow brighter then the visor did to the point when in a dark area he might as well be wearing two flashlights over his eyes
Works to scare criminals in the dark away though
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iconichipsterdotcom · 3 months ago
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Ariana’s so funny 😭😭😭😭😭 #ArianaGrande #CynthiaErivo #LieDetector
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ikno-io · 5 months ago
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Learn about the polygraph test, its mechanisms, and its role in the Bengali context. Discover the advantages and disadvantages of lie detection. read the full article: https://bit.ly/4dUNCuI #polygraph #lieDetector #Bengali #technology read more: what is polygraph test in bengali
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jobseekersvideonetwork · 10 months ago
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When applying for some jobs, you may have to take a polygraph test as part of your background check. Hire a trained and licensed professional Polygraph Examiner. #polygraph #liedetector #art
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rebeleden · 2 years ago
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Watch "Why the CIA Hires Sociopaths 🤪" on YouTube
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sarsootah · 2 years ago
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Watch "Why the CIA Hires Sociopaths 🤪" on YouTube
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vejito2 · 2 years ago
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Watch "Why the CIA Hires Sociopaths 🤪" on YouTube
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liedectectorandbpcheck · 4 years ago
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polygraph test
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