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Which Facial Features Are Central in Impression Formation? / Bastian Jaeger, Alex Jones

Social Psychological and Personality Science, Start page: 194855062110349

Swansea University Author: Alex Jones

Abstract

Which facial characteristics do people rely on when forming personality impressions? Previous research has uncovered an array of facial features that influence people’s impressions. Even though some (classes of) features, such as resemblances to emotional expressions or facial width-to-height ratio...

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Published in: Social Psychological and Personality Science
ISSN: 1948-5506 1948-5514
Published: SAGE Publications 2021
Online Access: Check full text

URI: https://cronfa.swan.ac.uk/Record/cronfa57630
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Abstract: Which facial characteristics do people rely on when forming personality impressions? Previous research has uncovered an array of facial features that influence people’s impressions. Even though some (classes of) features, such as resemblances to emotional expressions or facial width-to-height ratio (fWHR), play a central role in theories of social perception, their relative importance in impression formation remains unclear. Here, we model faces along a wide range of theoretically important dimensions and use machine learning techniques to test how well 28 features predict impressions of trustworthiness and dominance in a diverse set of 597 faces. In line with overgeneralization theory, emotion resemblances were most predictive of both traits. Other features that have received a lot of attention in the literature, such as fWHR, were relatively uninformative. Our results highlight the importance of modeling faces along a wide range of dimensions to elucidate their relative importance in impression formation.
Keywords: social perception, personality impressions, overgeneralization theory, emotional expressions, facial width-to-height ratio
College: College of Human and Health Sciences
Start Page: 194855062110349