Individual Attachment Style Modulates Human Amygdala and Striatum Activation during Social Appraisal
2008

How Attachment Style Affects Brain Responses to Social Cues

Sample size: 16 publication 10 minutes Evidence: moderate

Author Information

Author(s): Vrtička Pascal, Andersson Frédéric, Grandjean Didier, Sander David, Vuilleumier Patrik

Primary Institution: Swiss National Center for Affective Sciences, University of Geneva

Hypothesis

Individual differences in attachment styles should modulate activation patterns in brain circuits known to mediate social perception and behavior.

Conclusion

The study reveals that adult attachment style modulates neural responses to the perceived social meaning of facial expressions in brain regions associated with affective processing.

Supporting Evidence

  • Activation of striatum and ventral tegmental area was enhanced to positive feedback signaled by a smiling face.
  • Participants with avoidant attachment showed reduced activation to social rewards.
  • Anxious attachment correlated with increased amygdala response to angry faces associated with negative feedback.

Takeaway

People's attachment styles can change how their brains react to faces showing emotions, like happiness or anger, especially in social situations.

Methodology

Participants underwent fMRI while viewing faces with different emotional expressions in a social game context, and their attachment styles were assessed using questionnaires.

Potential Biases

Potential biases may arise from self-reported measures of attachment style.

Limitations

The study had a small sample size and focused only on healthy volunteers, which may limit generalizability.

Participant Demographics

16 healthy volunteers (8 males, mean age 23.6 years), all right-handed.

Statistical Information

P-Value

p<0.001

Statistical Significance

p<0.05

Digital Object Identifier (DOI)

10.1371/journal.pone.0002868

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