Individual differences in experiential diversity shape event segmentation granularity

Area of Science:

• Cognitive Neuroscience
• Psychology
• Social Neuroscience

Background:

• Event segmentation, parsing experiences into units, is crucial for memory, planning, and social navigation.
• Inter-individual differences in event segmentation are not well understood.
• Understanding these differences may illuminate cognitive health pathways.

Purpose of the Study:

• To investigate factors influencing individual differences in event segmentation.
• To explore the relationship between experiential diversity and event segmentation granularity.
• To examine the role of social and spatial diversity in event segmentation.

Main Methods:

• Participants' daily social and spatial experiential diversity was assessed.
• Event segmentation was measured during a movie-viewing task.
• Statistical analyses controlled for anxiety, loneliness, and socioeconomic factors.

Main Results:

• Greater experiential diversity, particularly social diversity, correlated with finer-grained event segmentation.
• This association persisted after controlling for confounding variables.
• The link between social diversity and segmentation was stronger in high-anxiety individuals.

Conclusions:

• Real-world experiential diversity shapes event segmentation granularity.
• Social experiential diversity plays a key role in event segmentation.
• Findings suggest a cognitive mechanism linking isolation to cognitive health impacts.