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Related Experiment Video

Updated: Sep 24, 2025

A Method for Investigating Age-related Differences in the Functional Connectivity of Cognitive Control Networks Associated with Dimensional Change Card Sort Performance

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Age-related differences in ventral striatal and default mode network function during reciprocated trust.

Dominic S Fareri¹, Katherine Hackett², Lindsey J Tepfer³

¹Gordon F. Derner School of Psychology, Adelphi University, Garden City, NY, USA.

|May 3, 2022

Summary

Older adults show blunted striatal responses to trusting friends, unlike younger adults. Aging also alters default-mode network (DMN) connectivity with the temporoparietal junction (TPJ) during social trust decisions.

Keywords:

Aging Connectivity Default mode network Reciprocity Trust Ventral striatum

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Published on: March 21, 2019

Area of Science:

Neuroscience
Cognitive Aging
Social Psychology

Background:

Social networks and priorities shift with age.
Aging impacts executive functions, including decision-making.
The interaction between aging, social closeness, and financial trust is not well understood.

Purpose of the Study:

To investigate age-related differences in financial decision-making during a trust game.
To examine how social closeness (friend, stranger, computer) influences trust behavior and neural responses across the lifespan.
To explore the interplay between aging, social network narrowing, and executive function in trust contexts.

Main Methods:

Recruited 50 participants (26 younger, 24 older adults).
Participants played an economic trust game as investors with different investees (friend, stranger, computer).
Functional magnetic resonance imaging (fMRI) was used to measure brain activity during the game.

Main Results:

Older adults had blunted striatal responses to reciprocated trust from friends compared to younger adults.
Older adults showed increased default-mode network (DMN) connectivity with the temporoparietal junction (TPJ) when trusting friends versus computers.
Younger adults exhibited the opposite pattern of DMN-TPJ connectivity.

Conclusions:

Age-related differences exist in sensitivity to social closeness during trust decisions.
Striatal responses and DMN-TPJ connectivity during social trust are modulated by age and social context.
Findings advance understanding of how aging affects social decision-making and trust.