Hodgetts Carl J, Berry Samuel C, Postans Mark, Williams Angharad N
Department of Psychology, Royal Holloway, University of London, Egham, Surrey TW20 0EX, UK.
Communicable Disease Surveillance Centre, Public Health Wales, Number 2 Capital Quarter, Tyndall Street, Cardiff CF10 4BZ, UK.
iScience. 2025 Jul 16;28(8):113134. doi: 10.1016/j.isci.2025.113134. eCollection 2025 Aug 15.
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.
将经历解析为有意义的事件或单元，即所谓的事件分割，对于构建情景记忆、规划以及在空间和社会环境中导航可能至关重要。然而，对于塑造事件分割个体差异的因素知之甚少。在这里，我们表明，在日常社交和空间生活中变化更大（体验多样性）的个体在观看电影任务中表现出更精细的事件分割。在考虑了潜在的混杂因素，如焦虑、孤独和社会经济因素之后，这种关系依然成立，并且主要由社会体验多样性的变化驱动。探索性分析表明，在高焦虑参与者中，社会体验多样性与分割粒度之间的关系更强，这表明在观看电影期间对精细的社会情感线索的警惕性提高。这些结果支持了这样一种观点，即事件分割可以基于在“自然环境”中学习到的社会和空间环境动态而主动发生，并提供了一种潜在的认知途径，通过该途径隔离会影响认知健康。
