The Other-Race and Other-Species Effect during a Sex Categorization Task: An Eye Tracker Study

Sex categorization from faces is a crucial ability for humans and non-human primates for various social and cognitive processes. In the current study, we performed two eye tracking experiments to examine the gaze behavior of participants during a sex categorization task in which participants categor...

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Main Authors: Merve Bulut, Burak Erdeniz
Format: Article
Language:English
Published: MDPI AG 2020-01-01
Series:Behavioral Sciences
Subjects:
Online Access:https://www.mdpi.com/2076-328X/10/1/24
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author Merve Bulut
Burak Erdeniz
author_facet Merve Bulut
Burak Erdeniz
author_sort Merve Bulut
collection DOAJ
description Sex categorization from faces is a crucial ability for humans and non-human primates for various social and cognitive processes. In the current study, we performed two eye tracking experiments to examine the gaze behavior of participants during a sex categorization task in which participants categorize face pictures from their own-race (Caucasian), other-race (Asian) and other-species (chimpanzee). In experiment 1, we presented the faces in an upright position to 16 participants, and found a strong other-race and other-species effect. In experiment 2, the same faces were shown to 24 naïve participants in an upside-down (inverted) position, which showed that, although the other-species effect was intact, other-race effect disappeared. Moreover, eye-tracking analysis revealed that in the upright position, the eye region was the first and most widely viewed area for all face categories. However, during upside-down viewing, participants’ attention directed more towards the eye region of the own-race and own-species faces, whereas the nose received more attention in other-race and other-species faces. Overall results suggest that other-race faces were processed less holistically compared to own-race faces and this could affect both participants’ behavioral performance and gaze behavior during sex categorization. Finally, gaze data suggests that the gaze of participants shifts from the eye to the nose region with decreased racial and species-based familiarity.
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spelling doaj.art-587f729e88614c91a01a3ad27fdf2b692022-12-21T23:20:38ZengMDPI AGBehavioral Sciences2076-328X2020-01-011012410.3390/bs10010024bs10010024The Other-Race and Other-Species Effect during a Sex Categorization Task: An Eye Tracker StudyMerve Bulut0Burak Erdeniz1Department of Psychology, Izmir University of Economics, İzmir 35330, TurkeyDepartment of Psychology, Izmir University of Economics, İzmir 35330, TurkeySex categorization from faces is a crucial ability for humans and non-human primates for various social and cognitive processes. In the current study, we performed two eye tracking experiments to examine the gaze behavior of participants during a sex categorization task in which participants categorize face pictures from their own-race (Caucasian), other-race (Asian) and other-species (chimpanzee). In experiment 1, we presented the faces in an upright position to 16 participants, and found a strong other-race and other-species effect. In experiment 2, the same faces were shown to 24 naïve participants in an upside-down (inverted) position, which showed that, although the other-species effect was intact, other-race effect disappeared. Moreover, eye-tracking analysis revealed that in the upright position, the eye region was the first and most widely viewed area for all face categories. However, during upside-down viewing, participants’ attention directed more towards the eye region of the own-race and own-species faces, whereas the nose received more attention in other-race and other-species faces. Overall results suggest that other-race faces were processed less holistically compared to own-race faces and this could affect both participants’ behavioral performance and gaze behavior during sex categorization. Finally, gaze data suggests that the gaze of participants shifts from the eye to the nose region with decreased racial and species-based familiarity.https://www.mdpi.com/2076-328X/10/1/24other-race effectother-species effectsex categorizationeye trackingface processingholistic processingface inversion effect
spellingShingle Merve Bulut
Burak Erdeniz
The Other-Race and Other-Species Effect during a Sex Categorization Task: An Eye Tracker Study
Behavioral Sciences
other-race effect
other-species effect
sex categorization
eye tracking
face processing
holistic processing
face inversion effect
title The Other-Race and Other-Species Effect during a Sex Categorization Task: An Eye Tracker Study
title_full The Other-Race and Other-Species Effect during a Sex Categorization Task: An Eye Tracker Study
title_fullStr The Other-Race and Other-Species Effect during a Sex Categorization Task: An Eye Tracker Study
title_full_unstemmed The Other-Race and Other-Species Effect during a Sex Categorization Task: An Eye Tracker Study
title_short The Other-Race and Other-Species Effect during a Sex Categorization Task: An Eye Tracker Study
title_sort other race and other species effect during a sex categorization task an eye tracker study
topic other-race effect
other-species effect
sex categorization
eye tracking
face processing
holistic processing
face inversion effect
url https://www.mdpi.com/2076-328X/10/1/24
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