The average facial expression of a crowd influences impressions of individual expressions

Research output: Contribution to journalArticle

2 Citations (Scopus)
7 Downloads (Pure)

Abstract

People can accurately assess the “mood of a crowd” by rapidly extracting the average intensity of all the individual expressions, when the crowd consists of a set of faces comprising different expressions of the same individual. Here, we investigate the processes involved when people judge the expression intensity of individual faces that appear in the context of a more naturalistic crowd of different individuals’ faces. We show that judgments of the intensity of happy and angry expressions for individual faces are biased toward the group mean expression intensity, even when the faces are all different individuals. In a second experiment, we demonstrate that this bias is not due to a generic tendency to endorse intermediate intensity expressions more frequently than more extreme intensity expressions. Together, these findings suggest that people integrate ensemble information about the group average expression when they make judgments of individual faces’ expressions. (PsycINFO Database Record (c) 2017 APA, all rights reserved)

Original languageEnglish
Pages (from-to)311-319
JournalJournal of Experimental Psychology: Human Perception and Performance
Volume44
Issue number2
Early online date29 May 2017
DOIs
Publication statusPublished - Feb 2018

Fingerprint

Facial Expression
Crowds

Cite this

@article{4aa70377da484937bc763813e1634d8e,
title = "The average facial expression of a crowd influences impressions of individual expressions",
abstract = "People can accurately assess the “mood of a crowd” by rapidly extracting the average intensity of all the individual expressions, when the crowd consists of a set of faces comprising different expressions of the same individual. Here, we investigate the processes involved when people judge the expression intensity of individual faces that appear in the context of a more naturalistic crowd of different individuals’ faces. We show that judgments of the intensity of happy and angry expressions for individual faces are biased toward the group mean expression intensity, even when the faces are all different individuals. In a second experiment, we demonstrate that this bias is not due to a generic tendency to endorse intermediate intensity expressions more frequently than more extreme intensity expressions. Together, these findings suggest that people integrate ensemble information about the group average expression when they make judgments of individual faces’ expressions. (PsycINFO Database Record (c) 2017 APA, all rights reserved)",
author = "Sarah Griffiths and Gillian Rhodes and Linda Jeffery and Romina Palermo and Markus Neumann",
year = "2018",
month = "2",
doi = "10.1037/xhp0000446",
language = "English",
volume = "44",
pages = "311--319",
journal = "JOURNAL OF EXPERIMENTAL PSYCHOLOGY-HUMAN PERCEPTION AND PERFORMANCE",
issn = "0096-1523",
publisher = "American Psychological Association",
number = "2",

}

TY - JOUR

T1 - The average facial expression of a crowd influences impressions of individual expressions

AU - Griffiths, Sarah

AU - Rhodes, Gillian

AU - Jeffery, Linda

AU - Palermo, Romina

AU - Neumann, Markus

PY - 2018/2

Y1 - 2018/2

N2 - People can accurately assess the “mood of a crowd” by rapidly extracting the average intensity of all the individual expressions, when the crowd consists of a set of faces comprising different expressions of the same individual. Here, we investigate the processes involved when people judge the expression intensity of individual faces that appear in the context of a more naturalistic crowd of different individuals’ faces. We show that judgments of the intensity of happy and angry expressions for individual faces are biased toward the group mean expression intensity, even when the faces are all different individuals. In a second experiment, we demonstrate that this bias is not due to a generic tendency to endorse intermediate intensity expressions more frequently than more extreme intensity expressions. Together, these findings suggest that people integrate ensemble information about the group average expression when they make judgments of individual faces’ expressions. (PsycINFO Database Record (c) 2017 APA, all rights reserved)

AB - People can accurately assess the “mood of a crowd” by rapidly extracting the average intensity of all the individual expressions, when the crowd consists of a set of faces comprising different expressions of the same individual. Here, we investigate the processes involved when people judge the expression intensity of individual faces that appear in the context of a more naturalistic crowd of different individuals’ faces. We show that judgments of the intensity of happy and angry expressions for individual faces are biased toward the group mean expression intensity, even when the faces are all different individuals. In a second experiment, we demonstrate that this bias is not due to a generic tendency to endorse intermediate intensity expressions more frequently than more extreme intensity expressions. Together, these findings suggest that people integrate ensemble information about the group average expression when they make judgments of individual faces’ expressions. (PsycINFO Database Record (c) 2017 APA, all rights reserved)

U2 - 10.1037/xhp0000446

DO - 10.1037/xhp0000446

M3 - Article

VL - 44

SP - 311

EP - 319

JO - JOURNAL OF EXPERIMENTAL PSYCHOLOGY-HUMAN PERCEPTION AND PERFORMANCE

JF - JOURNAL OF EXPERIMENTAL PSYCHOLOGY-HUMAN PERCEPTION AND PERFORMANCE

SN - 0096-1523

IS - 2

ER -