How does loneliness impact emotion perception? A systematic review

Loneliness, or perceived social isolation, is linked to significant long-term consequences for health. One mechanism through which loneliness contributes to health risk is via shifts in social cognition, particularly increased vigilance for social threats. While evidence suggests loneliness is assoc...

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Main Authors: Kelly E. Faig, Alexander C. Henoch, Mary S. Mousa, Karen E. Smith
Format: Article
Language:English
Published: Elsevier 2025-01-01
Series:Current Research in Behavioral Sciences
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Online Access:http://www.sciencedirect.com/science/article/pii/S2666518225000142
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author Kelly E. Faig
Alexander C. Henoch
Mary S. Mousa
Karen E. Smith
author_facet Kelly E. Faig
Alexander C. Henoch
Mary S. Mousa
Karen E. Smith
author_sort Kelly E. Faig
collection DOAJ
description Loneliness, or perceived social isolation, is linked to significant long-term consequences for health. One mechanism through which loneliness contributes to health risk is via shifts in social cognition, particularly increased vigilance for social threats. While evidence suggests loneliness is associated with changes in how individuals interpret others’ intentions within social interactions, the specific cognitive and affective mechanisms underlying these effects are less clear. Expressions of emotion represent a unique and significant source of information about others’ intentions; being able to successfully understand and use these expressions to make inferences about others’ mental states guides effective decision-making and social behavior, and has consequences for health. This systematic review of literature on loneliness and emotion perception examines whether loneliness is linked to how individuals understand emotions in others, and whether patterns are consistent with increased vigilance to social threat. In contrast to theoretical predictions, the majority of studies found that loneliness demonstrated a lack of a relationship with emotion perception, or was associated with decreased accuracy in the recognition of emotion expressions in faces. It was not clear whether these effects occur across emotion states or are specific to certain emotion categories. We highlight the need for more research incorporating measures of chronicity of loneliness experiences and measures of emotion perception that generalize to naturalistic social interactions to better understand how loneliness shapes these processes. Identifying how links between loneliness and emotion perception impact long-term maintenance of social relationships, emotion regulation, and health risk is critical to elucidating specific mechanisms that can be used to inform more targeted and effective loneliness interventions.
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spelling doaj-art-9b0227ebdbe84b4c995e80e6042e4e322025-08-20T04:01:01ZengElsevierCurrent Research in Behavioral Sciences2666-51822025-01-01910018110.1016/j.crbeha.2025.100181How does loneliness impact emotion perception? A systematic reviewKelly E. Faig0Alexander C. Henoch1Mary S. Mousa2Karen E. Smith3Department of Psychology, Hamilton College, Clinton, NY, USA; Corresponding author.Department of Psychology, Rutgers University – Newark, Newark, NJ, USADepartment of Psychology, Rutgers University – Newark, Newark, NJ, USADepartment of Psychology, Rutgers University – Newark, Newark, NJ, USALoneliness, or perceived social isolation, is linked to significant long-term consequences for health. One mechanism through which loneliness contributes to health risk is via shifts in social cognition, particularly increased vigilance for social threats. While evidence suggests loneliness is associated with changes in how individuals interpret others’ intentions within social interactions, the specific cognitive and affective mechanisms underlying these effects are less clear. Expressions of emotion represent a unique and significant source of information about others’ intentions; being able to successfully understand and use these expressions to make inferences about others’ mental states guides effective decision-making and social behavior, and has consequences for health. This systematic review of literature on loneliness and emotion perception examines whether loneliness is linked to how individuals understand emotions in others, and whether patterns are consistent with increased vigilance to social threat. In contrast to theoretical predictions, the majority of studies found that loneliness demonstrated a lack of a relationship with emotion perception, or was associated with decreased accuracy in the recognition of emotion expressions in faces. It was not clear whether these effects occur across emotion states or are specific to certain emotion categories. We highlight the need for more research incorporating measures of chronicity of loneliness experiences and measures of emotion perception that generalize to naturalistic social interactions to better understand how loneliness shapes these processes. Identifying how links between loneliness and emotion perception impact long-term maintenance of social relationships, emotion regulation, and health risk is critical to elucidating specific mechanisms that can be used to inform more targeted and effective loneliness interventions.http://www.sciencedirect.com/science/article/pii/S2666518225000142LonelinessPerceived social isolationEmotion perceptionEmotion recognitionEmotion understandingEmotion expressions
spellingShingle Kelly E. Faig
Alexander C. Henoch
Mary S. Mousa
Karen E. Smith
How does loneliness impact emotion perception? A systematic review
Current Research in Behavioral Sciences
Loneliness
Perceived social isolation
Emotion perception
Emotion recognition
Emotion understanding
Emotion expressions
title How does loneliness impact emotion perception? A systematic review
title_full How does loneliness impact emotion perception? A systematic review
title_fullStr How does loneliness impact emotion perception? A systematic review
title_full_unstemmed How does loneliness impact emotion perception? A systematic review
title_short How does loneliness impact emotion perception? A systematic review
title_sort how does loneliness impact emotion perception a systematic review
topic Loneliness
Perceived social isolation
Emotion perception
Emotion recognition
Emotion understanding
Emotion expressions
url http://www.sciencedirect.com/science/article/pii/S2666518225000142
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