How social connections and loneliness affect thinking in older adults
Official title: Advancing the Study of Social Isolation, Loneliness, and Cognitive Functioning in Older Adults Through the Use of Integrative Data Analysis
Funded at Northwestern University · NIH-11393680 · Data updated 2026-11-12
A study of how feeling lonely and actually having few social contacts influence thinking skills and risk of dementia in older adults.
Quick facts
| Grant type | R01 grant |
|---|---|
| Study type | NIH-funded research |
| Funding institution | Northwestern University NIH-funded |
| Lab location | 1 site (Chicago, United States) |
| Project start | August 1, 2023 |
| Project end | April 30, 2028 |
| Funding year | 2026 |
| Award (this year) | $582,324 |
| NIH project number | 5R01AG082954-04 |
| Project ID | NIH-11393680 on NIH RePORTER |
Who could benefit from this research
✓Could help
Older adults at risk for or with Alzheimer’s disease and related dementias who experience loneliness or social isolation.
✕Less likely to help
Individuals without significant social isolation or loneliness or without risk factors for ADRD may experience limited direct benefit.
What this research studies
This project looks at older adults to understand how the number of social contacts and the feeling of loneliness relate to memory and thinking changes over time. It uses data from existing large studies to see if mismatches between loneliness and social networks (social asymmetry) predict cognitive decline and dementia risk, especially when physical or psychological health is stressed. By following participants over several years, researchers aim to identify when and for whom loneliness and isolation most affect brain health. The work focuses on people 21 and older who are at risk for or living with Alzheimer’s disease and related dementias.
Why it matters
Potential benefit: Understanding these relationships could lead to better prevention strategies and support to protect cognitive health in aging populations.
How similar studies have gone: Prior research has linked loneliness and isolation to cognitive changes, but this project emphasizes how their overlap predicts risk, offering new insights.
Where this research is happening
-
Northwestern University
Chicago, United States Active
Researchers
- Principal investigator: Graham, Eileen Kranz — Northwestern University
- Study coordinator: Graham, Eileen Kranz
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About this research
- This is an active NIH-funded research project — typically early-stage science, not a clinical trial accepting patient enrollment.
- Some NIH-funded labs run parallel clinical studies or seek volunteers for related work. To check, contact the principal investigator or institution listed above.
- For full project details, budget, and progress reports, visit the official NIH RePORTER page.