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Still studying micro-expression reading? Come on, I'll show you something.

dinghong
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2023-11-01



If someone talks to you about micro-expressions, most of them are misled by the criminal investigation.


After all, it's not what you want, it's not what you lie about!






A micro-expression. You know what it is?






By definition, it is an extremely short-lived, undetectable facial action. How short is it? About 1/25 to 1/5 seconds. It is also said that no more than one second. But anyway,
Ordinary people are hard to find
I don't know.


Let's see an example.








Figure: https://www.paulekman.com/resources/micro-expressions/




How did someone find this thing?


It's a wonderful story.


In the 1960s, Paul Ekman and his partner were invited to analyse a video of depressed people lying.


The inpatient told the therapist that he had fully recovered and wanted to go home on the weekend. After an assessment, the therapist agreed. However, before leaving the hospital, the patient regretted that he had admitted to the therapist that he had not recovered but wanted to go home and commit suicide.


In order to avoid similar events, the therapist commissioned Eichmann to analyse this video of the patient to find clues about his lying.


So Eichmann and his partner watched the video over and over again.


At first, they didn't notice anything unusual: the patient laughed, was optimistic and could not see any idea of suicide. But when they play the video at a slow pace, they test it by frame.
Found out that when asked “What's the future plan”, the patient showed a strong painful look



It's only two frames of view, lasting 1/12 seconds.
This very short expression is the only trace of suicide in the video.



So, they call this face "
Micro-expressions
I'm sorry.


Also from here, Eichmann was enthusiastically involved in the study of micro-expressions and polygraphs, thus opening up the branch of micro-expression psychology.









A micro-expression of emotion: Surprise, fear/shock, sadness, anger, joy, hate Wikipedia commons/Dixy52







Micro-expressions. Can you do a polygraph?






Since the birth of micro-expressions, micro-expressions have been associated with polygraphing, and decades later today many also believe that they can devastate people.


But the truth is it's not that simple!


To test a lie with a micro-expression, two conditions are met:
First, the other side really has a micro-expression; second, the micro-expression only appears when lying
I don't know.


So, do these two conditions work?


In 2012, researchers recruited some of the testees, allowing them to describe their own experiences of regret and the “even though it has happened, it does not regret”. Researchers are watching the faces of their stories, comparing the faces of two things.


Together with a verification of the trueness of the story, the experiment yielded two results.


First result:
People do have micro-expressions, but only 32.3 per cent do.
;


Second result:
Whether it's true or false, there may be micro-expressions, or there may be no micro-expressions.
I don't know.








Figure 丨giphy




Some of them are going to say that, while micro-expressions cannot be used as evidence of a lie, they are at least a clue to the lie. For example, with more micro-expressions when lying, the greater the likelihood that this person will lie.


I think, as a clue, it's like a fortune teller: I'm sure you'll live to be 100 years old when you've got your muscles and your muscles.



Anyway, at least for ordinary people, polygraphing on micro-expressions is certainly not a good thing, and it's no use watching multiple detectives.
I don't know.






How can you lie without a micro-expression?






I can't do the polygraph.


First of all, don't use "see." Had there really been a visible sign on humans that could have been used as a lie, they would have been lost by Darwin.


It's a lie.


This has to do with “asymmetric information management technology”. In short,
You can tell each other that I doubt you're lying, and the more information you provide, the more I can tell if you're lying.
I don't know.


This time,
More information will be provided if the person is innocent
To prove yourself; on the contrary,
If he was a liar, he wouldn't say much.
Fear of providing too much information to expose yourself.


The study found that could be based solely on who provided more information
Increase polygraph accuracy from 41% to 81%
.








Figure 丨giphy




Of course.
It's not absolute, it's just probabilistic.
I don't know. Maybe someone really doesn't want to explain. For example: When Han Dynasty suspected that Yaf Zhou had rebelled, his approach was: What, do you doubt that I have rebelled? I'll show you!


Such a person, with a very high moral commitment, believes that being suspected is in itself an affront, and that it is to be interpreted as a violation of his or her dignity, and that it is not.


So tell me about the polygraph. It's good. It's bad. It's bad.











References














[1] Ekman, P., & Friesen, W.V. (1969). Nonverbal Leakage and Clubs to Decide. Psychiatry, 32(1), 88-106.

[2]https://doi.org/10.1080/00332747.1969.11023575

[3] Hartwig, M., & Bond, C. F., Jr. (2011). Why do lie-catchers fail?

[4] Porter, C.N., Morrison, E., Fitzgerald, R.J., Taylor, R., & Harvey, A.C. (2020). Lie-description by strategy migration: Developing an asymmetric information management (AIM) technique. Journal of Aplied Research in Memory and Regulation, 9 (2), 232-241. https://doi.org/10.1016/j.jarmac.200.01.004

[5] Porter, S., & ten Brinke, L. (2008). Reading Between the Lies. Psychological Science, 19 (5), 508-514. https://doi.org/10111/j.1467-9280.2008.02116.x

[6]ten Brinke, L., MacDonald, S., Porter, S., & O'Connor, B. (2012).

[7] Liang Jing, Yan Wenzheng, Wu Chi, Shin Zhui, Wang Zheng, Fu Xiaolan (2013). Progress and prospects of micro-image research.

[8] Zheng Jie, Fu Xiaolan. (2017). Application of micro-expressions in fraud testing. Progress in psychoscience (02), 211-220.doi:CNKI:SUN:XLXD.0.2017-02-003.

[9] Wu Chi, Shin Searcher, Fu Xiaolan. (2010). Micro emoticon studies and their applications. Progress in psychoscience (09), 1359-1368.doi:CNKI:SUN:XLXD.02010-09-002.
















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