The ERPs characteristics of Emotional attention bias in patients with borderline personality disorder

[Speaker] Yi, Jinyao:1
[Co-author] Cao, Xiyu:1, Zhong, Mingtian:2, Yao, Shuqiao:1
1:Second Xiangya Hospital of Central South University (China (People's Republic of China)), 2:Center for Studies of Psychological Application, School of Psychology, South China Normal University (China (People's Republic of China))

This study was to explore the ERPs characteristics of emotional attention bias in patents with Borderline Personality Disorder(BPD). Based on the Structured Clinical Interview for the DSM-IV, 34 BPD patients and 27 age-, gender-, and education-matched non-BPD subjects were chosen to perform the emotional stroop task, and Event-related potentials were recorded. The results showed that the P1 amplitude was significantly lower in BPD group compared to non-BPD group (F1,59=8.24, p<0.05, η2=0.123). For the amplitude of late positive potential (LPP), there was significant interaction between emotional stimuli and group (F2,118=4.16, p<0.05, η2=0.066), post-hoc showed that BPD group had significantly lower LPP amplitudes than non-BPD group on both negative and positive stimuli condition, while no difference was observed between the groups on neutral stimuli condition. These results suggested that BPD patients do not exhibit attention bias to general stimuli, while they have defects of early emotional attention and of top-down processing function.
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