Electrophysiological Evidence of Attentional Avoidance in Sub-Clinical Individuals With Obsessive-Compulsive Symptoms

摘要: Obsessive-compulsive (OC) disorder (OCD) is characterized by obsessions and compulsions, giving rise to a high level of social occupational impairments. Accumulating evidence indicates that the cause maintenance OCD are related attentional bias. In this study, neural processes underpinning bias were carefully inspected for thirty participants with high/low propensity OC symptoms (HOC/LOC). Both behavioral electroencephalogram (EEG) data collected while performing dot-probe task threat or neutral pictures as stimuli. It was discovered from event-related potential (ERP) results compared pictures, elicited higher amplitudes ERP component $C1$ both HOC LOC groups during stimuli onset period. However, only group exhibited lower $P1$ than ones, indicating individuals contamination fear might divert their attention away automatically. The novel findings present study can pave an avenue unveiling complex mechanism associated avoidance in fear.