“Eye can’t see the difference”: Facial Expressions of Pain, Pleasure, and Fear Are Consistently Rated Due to Chance

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11240%2F22%3A10453955" target="_blank" >RIV/00216208:11240/22:10453955 - isvavai.cz</a>

Alternative codes found

RIV/00216208:11310/22:10453955

Result on the web

<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=dKnk3I0zoC" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=dKnk3I0zoC</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.22330/he/37/046-072" target="_blank" >10.22330/he/37/046-072</a>

Result language

angličtina

Original language name

“Eye can’t see the difference”: Facial Expressions of Pain, Pleasure, and Fear Are Consistently Rated Due to Chance

Original language description

Our research consisted of two studies focusing on the probability of humans being able to perceive the difference between faces expressing pain versus pleasure. As controls, we included: smile, neutral facial expression, and expression of fear. The first study was conducted online and used a large sample (n = 902) of respondents. The second study was conducted in a laboratory setting and involved a stress induction procedure. For both, the task was to categorize whether the facial expression was rated positive, neutral or negative. Stimuli were faces extracted from freely downloadable online videos. Each rating participant (rater) was presented with five facial expressions (stimuli) of five females and of five males. All raters were presented with the stimuli twice so as to evaluate the consistency of the ratings. Beforehand, we tested for stimuli differences using specialized software and found decisive differences. Using a Bayesian statistical approach, we could test for consistencies and due-to-chance probabilities. The results support the prediction that the results are not repeatable but are solely due to chance, decreasing the communication value of the expressions of pain and pleasure. The expression of fear was also rated due to chance, but neither neutral nor smile. Stress induction did have an impact on the perception of pleasure.

Czech name

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Czech description

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Type

J_ost - Miscellaneous article in a specialist periodical

CEP classification

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OECD FORD branch

50101 - Psychology (including human - machine relations)

Project

<a href="/en/project/GJ19-12885Y" target="_blank" >GJ19-12885Y: Behavioral and Psycho-Physiological Response on Ambivalent Visual and Auditory Stimuli Presentation</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2022

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Human Ethology [online]

ISSN

2224-4476

e-ISSN

2224-4476

Volume of the periodical

37

Issue of the periodical within the volume

November

Country of publishing house

GB - UNITED KINGDOM

Number of pages

27

Pages from-to

46-72

UT code for WoS article

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EID of the result in the Scopus database

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