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Attachment style, affective loss and gray matter volume: a voxel-based morphometry study.

Stefania Benetti¹, Eamon McCrory, Sobida Arulanantham

¹Division of Psychological Medicine and Psychiatry, Institute of Psychiatry, King's College London, London SE5 8AF, United Kingdom.

Human Brain Mapping

|February 4, 2010

Summary

Early attachment styles are linked to adult brain structure differences. This study reveals how attachment anxiety and avoidance correlate with gray matter volume, impacting emotion regulation and responses to loss.

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Published on: November 27, 2019

Area of Science:

Neuroscience
Psychology
Attachment Theory

Background:

Early infant attachment influences adult social behavior and brain development in animal models.
Previous research lacked human studies on the association between attachment style and brain structure.
Understanding attachment's neural correlates is crucial for developmental and clinical psychology.

Purpose of the Study:

To investigate the association between adult attachment styles (anxious and avoidant) and gray matter volume.
To examine the relationship between affective loss, attachment style, and neural structure.
To explore potential neurobiological mechanisms underlying attachment's influence on emotion regulation and loss response.

Main Methods:

Utilized Magnetic Resonance Imaging (MRI) and voxel-based morphometry (VBM) in a healthy adult sample (n=32).
Assessed attachment style using the ECR-Revised questionnaire, measuring anxious and avoidant dimensions.
Quantified gray matter volume and correlated it with attachment dimensions and number of affective losses.

Main Results:

High attachment-related anxiety correlated with decreased gray matter in the anterior temporal pole and increased volume in the left lateral orbital gyrus.
A greater number of affective losses was associated with increased cerebellar gray matter volume.
The impact of affective losses on cerebellar volume was significantly moderated by attachment-related avoidance.

Conclusions:

Attachment styles are associated with structural differences in brain regions critical for emotion regulation.
Early attachment experiences may contribute to lasting structural brain variations evident in adulthood.
Findings suggest a neural pathway through which attachment style influences individual responses to affective loss.