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Updated: Feb 27, 2026

Social Isolation Model: A Noninvasive Rodent Model of Stress and Anxiety
Published on: November 11, 2022
Could High Mental Demands at Work Offset the Adverse Association Between Social Isolation and Cognitive Functioning?
Francisca S Rodriguez1, Matthias L Schroeter2, A Veronica Witte3
1Edward R. Roybal Institute on Aging, University of Southern California, Los Angeles, CA; Institute of Social Medicine, Occupational Health and Public Health, University of Leipzig, Leipzig, Germany; Leipzig Research Center for Civilization Diseases, University of Leipzig, Leipzig, Germany.
Objectives:
The study investigated whether high mental demands at work, which have shown to promote a good cognitive functioning in old age, could offset the adverse association between social isolation and cognitive functioning.
Methods:
Based on data from the population-based LIFE-Adult-Study, the association between cognitive functioning (Verbal Fluency Test, Trail Making Test B) and social isolation (Lubben Social Network Scale) as well as mental demands at work (O*NET database) was analyzed via linear regression analyses adjusted for age, sex, education, and sampling weights.
Results:
Cognitive functioning was significantly lower in socially isolated individuals and in individuals working in low mental demands jobs-even in old age after retirement and even after taking into account the educational level. An interaction effect suggested stronger effects of mental demands at work in socially isolated than nonisolated individuals.
Conclusions:
The findings suggest that working in high mental-demand jobs could offset the adverse association between social isolation and cognitive functioning. Further research should evaluate how interventions that target social isolation and enhance mentally demanding activities promote a good cognitive functioning in old age.
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