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

Kód výsledku v 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>

Nalezeny alternativní kódy

RIV/00216208:11310/22:10453955

Výsledek na webu

<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>

Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

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

Popis výsledku anglicky

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.

Druh

J_ost - Ostatní články v recenzovaných periodicích

CEP obor

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OECD FORD obor

50101 - Psychology (including human - machine relations)

Projekt

<a href="/cs/project/GJ19-12885Y" target="_blank" >GJ19-12885Y: Behaviorální a psycho-fyziologická reakce na prezentaci ambivalentních obrazových a zvukových stimulů</a><br>

Návaznosti

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

Rok uplatnění

2022

Kód důvěrnosti údajů

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

Název periodika

Human Ethology [online]

ISSN

2224-4476

e-ISSN

2224-4476

Svazek periodika

37

Číslo periodika v rámci svazku

November

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

27

Strana od-do

46-72

Kód UT WoS článku

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EID výsledku v databázi Scopus

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