Li Chuhan, Wang Min, Yang Ping, Kong Xianxian, Li Ling
aKey Laboratory for NeuroInformation of Ministry of Education, High-Field Magnetic Resonance Brain Imaging Key Laboratory of Sichuan Province, School of Life Science and Technology, Center for Information in Medicine bSchool of Computer Science and Engineering, University of Electronic Science and Technology of China, Chengdu, China.
Neuroreport. 2016 Nov 9;27(16):1206-10. doi: 10.1097/WNR.0000000000000680.
We examined the influence of spatial selective attention on the processing of emotional faces (happy neutral, and fear) using behavioral as well as event-related potential recordings. Emotional stimuli were rapidly presented randomly to the right or the left visual field while participants attended to one visual field at a time, detecting smaller stimuli that were shown in the attended field. Behavioral results showed decreased accuracy for the fearful faces compared with neutral and happy faces. Event-related potential data showed that compared with the neutral and happy faces, fearful faces appearing in the right visual field elicited enhanced contralateral P1 amplitudes in the unattended condition, whereas fearful faces appearing in the left visual field elicited decreased contralateral N170 activity in the attended condition. These findings provide evidence for differential emotional processing under spatial attended and unattended conditions.
我们使用行为学方法以及事件相关电位记录，研究了空间选择性注意对情绪面孔（开心、中性和恐惧）加工的影响。情绪刺激快速随机呈现于右侧或左侧视野，而参与者每次只关注一个视野，检测呈现于所关注视野中的较小刺激。行为学结果显示，与中性和开心面孔相比，恐惧面孔的识别准确率降低。事件相关电位数据表明，与中性和开心面孔相比，右侧视野中出现的恐惧面孔在非关注条件下诱发对侧P1波幅增强，而左侧视野中出现的恐惧面孔在关注条件下诱发对侧N170活动减弱。这些发现为空间关注和非关注条件下的差异情绪加工提供了证据。
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