Borderline personality features and altered social feedback processing in emerging adults: An EEG study

Area of Science:

• Neuroscience
• Psychology
• Clinical Psychology

Background:

• Borderline personality features (BPF) are associated with significant social dysfunction.
• Understanding social feedback processing is crucial for addressing BPF.

Purpose of the Study:

• To investigate social feedback processing in emerging adults with BPF.
• To examine neural, behavioral, and self-report responses to social acceptance and rejection cues.

Main Methods:

• Utilized a computerized peer interaction task with 118 emerging adults.
• Measured electroencephalogram (EEG) for neurophysiological responses (e.g., Reward Positivity).
• Assessed behavioral choices and self-reported BPF, depression, and social anxiety.

Main Results:

• Higher BPF correlated with enhanced neural processing of social acceptance cues (increased Reward Positivity).
• Individuals with higher BPF exhibited less adaptive behavior, voting fewer times to retain accepting peers.
• These findings persisted after controlling for depression and social anxiety.

Conclusions:

• Heightened neural sensitivity to social acceptance, coupled with maladaptive behavioral responses, characterizes social reward processing in emerging adults with BPF.
• Altered social reward processing may underlie the social deficits seen in BPF.
• Further research can inform interventions for BPF-related social dysfunction.