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Clinical Manifestations.

Marina Kaplan1, Sophia L Holmqvist1, Riya Chaturvedi1

  • 1Temple University, Philadelphia, PA, USA.

Alzheimer'S & Dementia : the Journal of the Alzheimer'S Association
|December 26, 2025
PubMed
Summary
This summary is machine-generated.

Daily socialization benefits older adults' cognition, particularly language abilities. While physical activity also enhances global cognition, its interaction with socialization requires further study.

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Area of Science:

  • Gerontology
  • Cognitive Neuroscience
  • Social Psychology

Background:

  • Social interaction is recognized for its cognitive benefits in aging, yet underlying mechanisms are not fully understood.
  • This study investigates the relationship between daily social engagement and cognitive function in older adults.
  • Factors such as physical activity and stress levels were considered to clarify these associations.

Purpose of the Study:

  • To explore the connection between daily socialization, captured via Ecological Momentary Assessment (EMA), and cognitive abilities in older adults.
  • To determine if physical activity and perceived stress influence the relationship between socialization and cognition.
  • To identify specific cognitive domains affected by social engagement.

Main Methods:

  • Fifty-five community-dwelling older adults participated in a four-week study.
  • Daily socialization, stress, and activity (step count) were assessed using smartphone-based EMA and a smartwatch.
  • Cognitive performance was evaluated using a comprehensive assessment battery, with data analyzed using multiple and hierarchical linear regressions.

Main Results:

  • Higher daily socialization was significantly linked to better overall cognitive function and language abilities.
  • Physical activity (daily steps) showed a stronger association with global cognitive function than socialization.
  • Neither daily stress nor physical activity significantly altered the positive association between socialization and language abilities.

Conclusions:

  • Increased social engagement is specifically associated with enhanced global cognition and language skills in older adults.
  • Physical activity appears to confer greater benefits to global cognition compared to socialization.
  • Socialization may impact distinct cognitive domains through varied underlying mechanisms.