The aim of the study was to explore the role of interoceptive accuracy (IA) on exogenous attention to disgusting and fearful distractors of a main concurrent task. Participants were thirty university students previously identified as high (N = 16) or normal IA according their performance in a heartbeat detection task. Event-related potentials and behavioural responses were recorded. The results showed that disgusting stimuli capture exogenous attention in a first stage as reflected by the augmented amplitude of the P100 component of the ERPs in high IA participants. Fearful distractors may capture attention in a later moment in all participants as revealed by a marginally significant effect on the amplitude of N200. At behavioural level, disgusting distractors provoked a higher number of errors than neutral in normal IA participants. The time course of the effect of disgust and fearful eliciting distractors on exogenous attention appeared to depend on the individual characteristic of participants.

该研究的目的是探索内感受准确度 (IA) 对主要并发任务的令人厌恶和可怕的干扰因素的外源性注意力的作用。参与者是之前被认定为高 ( N = 16) 或正常 IA 根据其在心跳检测任务中的表现。记录事件相关电位和行为反应。结果表明，在高 IA 参与者中，令人厌恶的刺激会在第一阶段捕获外源性注意力，这反映在 ERP 的 P100 分量的增强幅度上。正如对 N200 振幅的轻微显着影响所揭示的那样，可怕的干扰因素可能会在稍后的时刻吸引所有参与者的注意力。在行为层面，在正常的 IA 参与者中，令人厌恶的干扰因素比中性因素引起的错误数量更多。厌恶和恐惧引起的干扰因素对外源性注意力的影响的时间过程似乎取决于参与者的个体特征。