Individual differences in experiential diversity shape event segmentation granularity

Hodgetts, CJ, Berry, SC, Postans, M and Williams, AN ORCID: https://orcid.org/0000-0001-9363-8537, 2025. Individual differences in experiential diversity shape event segmentation granularity. iScience, 28 (8): 113134. ISSN 2589-0042

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Abstract

Parsing experience into meaningful events or units, known as event segmentation, may be critical for structuring episodic memory, planning, and navigating spatial and social environments. However, little is known about what factors shape inter-individual differences in event segmentation. Here, we show that individuals with greater variation in their daily social and spatial lives (experiential diversity) displayed more fine-grained event segmentation during a movie-viewing task. This relationship held after considering potential confounds, such as anxiety, loneliness, and socioeconomic factors, and was primarily driven by variation in social experiential diversity. Exploratory analyses revealed that the relationship between social experiential diversity and segmentation granularity was stronger in high-anxiety participants, suggesting heightened vigilance to fine-grained social-emotional cues during movie-viewing. These results support the view that event segmentation can occur proactively based on social and spatial environmental dynamics learned “in the wild” and provide a potential cognitive pathway through which isolation impacts cognitive health.

Item Type:	Journal article
Publication Title:	iScience
Creators:	Hodgetts, C.J., Berry, S.C., Postans, M. and Williams, A.N.
Publisher:	Elsevier BV
Date:	15 August 2025
Volume:	28
Number:	8
ISSN:	2589-0042
Identifiers:	Number Type 10.1016/j.isci.2025.113134 DOI 2486120 Other
Rights:	© 2025 The Authors. Published by Elsevier Inc. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).
Divisions:	Schools > School of Social Sciences
Record created by:	Laura Borcherds
Date Added:	14 Aug 2025 15:45
Last Modified:	14 Aug 2025 15:45
URI:	https://irep.ntu.ac.uk/id/eprint/54203

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