Delayed early face processing in bipolar disorder.

Bipolar disorder primarily encompasses mood symptom states of depression and mania separated by symptom-free euthymia, and patients also exhibit cognitive deficits that include face processing. However, there is minimal extant event-related potential (ERP) research investigating the time course of these impairments. The aim of the present study was to contribute to a greater understanding of the specific stages of face processing that are impaired in bipolar disorder.

Event-related potential correlates of inhibition in bipolar disorder.

Lack of inhibitory control is a commonly reported impairment in patients with bipolar disorder, however, there has been little research regarding the time course of inhibitory processes. Twenty-six participants (13 bipolar and 13 controls) completed an emotional go/no-go inhibition task while event-related potentials were recorded. Go minus no-go difference waves were computed to index response inhibition.

Neural correlates of emotional face processing in bipolar disorder: an event-related potential study.

Background: Behavioural and imaging studies report that individuals with bipolar disorder (BD) exhibit impairments in emotional face processing. However, few studies have studied the temporal characteristics of these impairments, and event-related potential (ERP) studies that investigate emotion perception in BD are rare. The aim of our study was to explore these processes as indexed by the face-specific P100 and N170 ERP components in a BD cohort.