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Probing the Brain in Autism Using fMRI and Diffusion Tensor Imaging

Probing the Brain in Autism Using fMRI and Diffusion Tensor Imaging

Published on: September 12, 2011

Social network size, empathy, and white matter: A diffusion tensor imaging (DTI) study.

Apoorva Veerareddy¹, Huihua Fang^2,3, Nooshin Safari¹

¹School of Systems Biology, George Mason University, Fairfax, VA, USA.

Cognitive, Affective & Behavioral Neuroscience

|October 1, 2024

Summary

White matter integrity in the superior longitudinal fasciculus (SLF) and cingulum (CING) is linked to social network size and cognitive empathy. This research explores brain structure

Keywords:

Cognitive empathy Fractional anisotropy Mentalizing Social network index White matter tracts

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Area of Science:

Neuroscience
Social Neuroscience
Cognitive Neuroscience

Background:

Social interactions are crucial, with the social brain hypothesis linking neocortex size to social demands.
The role of white matter (WM) fractional anisotropy (FA) in social cognition, empathy, and network characteristics is not fully understood.

Purpose of the Study:

To investigate the relationship between FA in key social cognition WM tracts and social network characteristics.
To examine the association between FA, social network size, and both cognitive and affective empathy.

Main Methods:

Diffusion tensor imaging (DTI) and tract-based spatial statistics (TBSS) were used.
Mediation analyses explored the interplay between WM tracts, social network size, and empathy.
FA was measured in specific WM tracts including the superior longitudinal fasciculus (SLF) and cingulum (CING).

Main Results:

Increased social network size correlated positively with FA in the left SLF.
Lower FA in the left CING was associated with larger social network size, mediated by cognitive empathy.
Findings suggest distinct roles for WM tracts in social network size and empathy.

Conclusions:

WM tracts crucial for social cognition have specific roles in social network dynamics and empathy.
The study offers insights into the neural underpinnings of social behavior and mental health.
Results highlight the connection between brain structure, social cognition, and empathy.