Left globus pallidus volume moderates the association between traumatic experiences and coping flexibility

Area of Science:

• Neuroscience
• Psychology
• Trauma Studies

Background:

• Refugees face severe trauma, potentially impairing coping flexibility.
• Previous research links coping styles to specific brain structures (hippocampus, thalamus).
• The moderating role of subcortical brain volumes on trauma and coping flexibility remains unexplored in refugees.

Purpose of the Study:

• To investigate if subcortical brain volumes moderate the relationship between trauma exposure and coping flexibility in Ukrainian refugees.
• To explore the neurobiological underpinnings of adaptation in a trauma-exposed population.

Main Methods:

• Structural MRI scans were used to measure subcortical brain volumes in 60 Ukrainian refugees and 50 controls.
• Psychiatric assessments and coping style evaluations were conducted.
• Coping flexibility was quantified using the Between-Strategy variability index.

Main Results:

• Larger left globus pallidus volume weakened the negative association between trauma exposure and coping flexibility.
• Greater bilateral striatal volumes were positively correlated with coping flexibility.
• Subcortical brain structures appear to influence adaptive coping capacity post-trauma.

Conclusions:

• The left globus pallidus may act as a buffer against the negative effects of trauma on coping flexibility.
• Striatal volumes may generally support adaptive coping.
• Neurobiological markers, particularly subcortical volumes, are crucial for understanding resilience in trauma-exposed populations.