Denefrio Samantha, Simmons Akeesha, Jha Amishi, Dennis-Tiwary Tracy A
The Graduate Center, The City University of New York, New York, New York, United States of America.
Hunter College, The City University of New York, New York, New York, United States of America.
PLoS One. 2017 Jul 6;12(7):e0179714. doi: 10.1371/journal.pone.0179714. eCollection 2017.
The beneficial effect of valid compared to invalid cues on attention performance is a basic attentional mechanism, but the impact of emotional content on cue validity is poorly understood. We tested whether the effect of cue validity on attention performance differed when cues were angry, happy, or neutral faces. Moreover, we used scalp-recorded event-related potentials (ERPs) reflecting the capture of early visual attention (P1, N170) to test whether effects were strengthened when neurocognitive responses to angry or happy cues were enhanced (larger P1 and N170 amplitudes). Twenty-five participants completed a modified flanker task using emotional face cues to measure the effects of emotion on conflict interference. Attention performance was enhanced following valid versus invalid cues, but effects did not differ by emotion cue type. However, for participants showing relatively larger N170 amplitudes to angry face cues, attention performance was specifically disrupted on those trials. Conversely, participants with relatively larger N170 amplitudes to happy face cues showed facilitated performance across all valid trials. These findings suggest that individual neurocognitive sensitivities to emotion predict the impact of emotional content on the basic attentional phenomenon of cue validity.
与无效线索相比，有效线索对注意力表现的有益影响是一种基本的注意机制，但情绪内容对线索有效性的影响却鲜为人知。我们测试了线索为愤怒、高兴或中性面孔时，线索有效性对注意力表现的影响是否存在差异。此外，我们使用头皮记录的事件相关电位（ERP）来反映早期视觉注意的捕获（P1、N170），以测试当对愤怒或高兴线索的神经认知反应增强时（更大的P1和N170波幅），这种影响是否会增强。25名参与者完成了一项使用情绪面孔线索的改良侧翼任务，以测量情绪对冲突干扰的影响。有效线索与无效线索相比，注意力表现得到增强，但情绪线索类型之间的影响没有差异。然而，对于那些对愤怒面孔线索表现出相对较大N170波幅的参与者，在那些试验中注意力表现会受到特别干扰。相反，对高兴面孔线索表现出相对较大N170波幅的参与者在所有有效试验中表现出促进作用。这些发现表明，个体对情绪的神经认知敏感性预测了情绪内容对线索有效性这一基本注意现象的影响。
