NIH-funded research R01 grant

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.

More Social Isolation research and trials

Quick facts

Grant typeR01 grant
Study typeNIH-funded research
Funding institutionNorthwestern University
NIH-funded
Lab location1 site (Chicago, United States)
Project startAugust 1, 2023
Project endApril 30, 2028
Funding year2026
Award (this year)$582,324
NIH project number5R01AG082954-04
Project IDNIH-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

Related research

Other NIH-funded projects on the same topics.

About this research

  1. This is an active NIH-funded research project — typically early-stage science, not a clinical trial accepting patient enrollment.
  2. Some NIH-funded labs run parallel clinical studies or seek volunteers for related work. To check, contact the principal investigator or institution listed above.
  3. For full project details, budget, and progress reports, visit the official NIH RePORTER page.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.