Symmetry in Emotional and Visual Similarity between Neutral and Negative Faces

Is Mr. Hyde more similar to his alter ego Dr. Jekyll, because of their physical identity, or to Jack the Ripper, because both evoke fear and loathing? The relative weight of emotional and visual dimensions in similarity judgements is still unclear. We expected an asymmetric effect of these dimension...

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Main Authors: Martina Riberto, Deborah Talmi, Gorana Pobric
Format: Article
Language:English
Published: MDPI AG 2021-11-01
Series:Symmetry
Subjects:
Online Access:https://www.mdpi.com/2073-8994/13/11/2091
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author Martina Riberto
Deborah Talmi
Gorana Pobric
author_facet Martina Riberto
Deborah Talmi
Gorana Pobric
author_sort Martina Riberto
collection DOAJ
description Is Mr. Hyde more similar to his alter ego Dr. Jekyll, because of their physical identity, or to Jack the Ripper, because both evoke fear and loathing? The relative weight of emotional and visual dimensions in similarity judgements is still unclear. We expected an asymmetric effect of these dimensions on similarity perception, such that faces that express the same or similar feeling are judged as more similar than different emotional expressions of same person. We selected 10 male faces with different expressions. Each face posed one neutral expression and one emotional expression (five disgust, five fear). We paired these expressions, resulting in 190 pairs, varying either in emotional expressions, physical identity, or both. Twenty healthy participants rated the similarity of paired faces on a 7-point scale. We report a symmetric effect of emotional expression and identity on similarity judgements, suggesting that people may perceive Mr. Hyde to be just as similar to Dr. Jekyll (identity) as to Jack the Ripper (emotion). We also observed that emotional mismatch decreased perceived similarity, suggesting that emotions play a prominent role in similarity judgements. From an evolutionary perspective, poor discrimination between emotional stimuli might endanger the individual.
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spelling doaj.art-eeaa7791c0ad4f96acc2861f640e9e412023-11-23T01:44:46ZengMDPI AGSymmetry2073-89942021-11-011311209110.3390/sym13112091Symmetry in Emotional and Visual Similarity between Neutral and Negative FacesMartina Riberto0Deborah Talmi1Gorana Pobric2Division of Neuroscience and Experimental Psychology, University of Manchester, Oxford Rd., Manchester M13 9PL, UKDepartment of Psychology, University of Cambridge, Cambridge CB2 3ED, UKDivision of Neuroscience and Experimental Psychology, University of Manchester, Oxford Rd., Manchester M13 9PL, UKIs Mr. Hyde more similar to his alter ego Dr. Jekyll, because of their physical identity, or to Jack the Ripper, because both evoke fear and loathing? The relative weight of emotional and visual dimensions in similarity judgements is still unclear. We expected an asymmetric effect of these dimensions on similarity perception, such that faces that express the same or similar feeling are judged as more similar than different emotional expressions of same person. We selected 10 male faces with different expressions. Each face posed one neutral expression and one emotional expression (five disgust, five fear). We paired these expressions, resulting in 190 pairs, varying either in emotional expressions, physical identity, or both. Twenty healthy participants rated the similarity of paired faces on a 7-point scale. We report a symmetric effect of emotional expression and identity on similarity judgements, suggesting that people may perceive Mr. Hyde to be just as similar to Dr. Jekyll (identity) as to Jack the Ripper (emotion). We also observed that emotional mismatch decreased perceived similarity, suggesting that emotions play a prominent role in similarity judgements. From an evolutionary perspective, poor discrimination between emotional stimuli might endanger the individual.https://www.mdpi.com/2073-8994/13/11/2091emotionssimilaritysymmetryRSA
spellingShingle Martina Riberto
Deborah Talmi
Gorana Pobric
Symmetry in Emotional and Visual Similarity between Neutral and Negative Faces
Symmetry
emotions
similarity
symmetry
RSA
title Symmetry in Emotional and Visual Similarity between Neutral and Negative Faces
title_full Symmetry in Emotional and Visual Similarity between Neutral and Negative Faces
title_fullStr Symmetry in Emotional and Visual Similarity between Neutral and Negative Faces
title_full_unstemmed Symmetry in Emotional and Visual Similarity between Neutral and Negative Faces
title_short Symmetry in Emotional and Visual Similarity between Neutral and Negative Faces
title_sort symmetry in emotional and visual similarity between neutral and negative faces
topic emotions
similarity
symmetry
RSA
url https://www.mdpi.com/2073-8994/13/11/2091
work_keys_str_mv AT martinariberto symmetryinemotionalandvisualsimilaritybetweenneutralandnegativefaces
AT deborahtalmi symmetryinemotionalandvisualsimilaritybetweenneutralandnegativefaces
AT goranapobric symmetryinemotionalandvisualsimilaritybetweenneutralandnegativefaces