Anodal Transcranial Direct-Current Stimulation Over the Right Dorsolateral Prefrontal Cortex Influences Emotional Face Perception  

作　　者：Li-Chuan Yang Ping Ren Yuan-Ye Ma 

机构地区：[1]Laboratory of Brain and Cognition, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming 650223 China [2]State Key Laboratory of Brain and Cognition, Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101 China [3]University of the Chinese Academy of Sciences, Bei- jing 100049, China [4]School of Nursing, University of Rochester Medical Center Rochester, NY 14642, USA

出　　处：《Neuroscience Bulletin》2018年第5期842-848,共7页神经科学通报（英文版）

基　　金：supported by the National Natural Science Foundation of China (91132302, 31730039);Ministry of Science and Technology of China (2015CB351701).

摘　　要：The dorsolateral prefrontal cortex （DLPFC） is considered to play a crucial role in many high-level functions, such as cognitive control and emotional regula- tion. Many studies have reported that the DLPFC can be activated during the processing of emotional information in tasks requiring working memory. However, it is still not clear whether modulating the activity of the DLPFC influences emotional perception in a detection task. In the present study, using transcranial direct-current stimulation （tDCS）, we investigated （I） whether modulating the right DLPFC influences emotional face processing in a detection task, and （2） whether the DLPFC plays equal roles in processing positive and negative emotional faces. The results showed that anodal tDCS over the right DLPFC specifically facilitated the perception of positive faces, but did not influence the processing of negative faces. In addition, anodal tDCS over the right primary visual cortex enhanced performance in the detection task regardless of emotional valence. Our findings suggest, for the first time,that modulating the right DLPFC influences emotional face perception, especially faces showing positive emotion.The dorsolateral prefrontal cortex （DLPFC） is considered to play a crucial role in many high-level functions, such as cognitive control and emotional regula- tion. Many studies have reported that the DLPFC can be activated during the processing of emotional information in tasks requiring working memory. However, it is still not clear whether modulating the activity of the DLPFC influences emotional perception in a detection task. In the present study, using transcranial direct-current stimulation （tDCS）, we investigated （I） whether modulating the right DLPFC influences emotional face processing in a detection task, and （2） whether the DLPFC plays equal roles in processing positive and negative emotional faces. The results showed that anodal tDCS over the right DLPFC specifically facilitated the perception of positive faces, but did not influence the processing of negative faces. In addition, anodal tDCS over the right primary visual cortex enhanced performance in the detection task regardless of emotional valence. Our findings suggest, for the first time,that modulating the right DLPFC influences emotional face perception, especially faces showing positive emotion.

关 键 词：TDCS Facial expression EMOTION Dorso-lateral prefrontal cortex 

分 类 号：R338[医药卫生—人体生理学]