《Chinese Journal of Rehabilitation Theory and Practice》 ›› 2019, Vol. 25 ›› Issue (11): 1327-1331.doi: 10.3969/j.issn.1006-9771.2019.11.012

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Effects of Transcranial Alternating Current Stimulation on Serial Reaction Time Task

WEI Ze1, XU Min-peng1,2, MING Dong1,2, MU Si-yu1   

  1. 1.School of Precision Instrument and Opto-electronics Engineering, Tianjin University, Tianjin 300072, China
    2.Academy of Medical Engineering and Translational Medicine, Tianjin University, Tianjin 300072, China
  • Received:2019-05-08 Revised:2019-05-31 Published:2019-11-25 Online:2019-11-21
  • Contact: XU Min-peng, E-mail: minpeng.xu@tju.edu.cn E-mail:minpeng.xu@tju.edu.cn
  • Supported by:
    Supported by National Natural Science Foundation of China (No. 81630051; No.81601565)

Abstract: Objective To investigate the effects of transcranial alternating current stimulation (tACS) on electroencephalography (EEG) rhythm and cognitive function. Methods In December, 2017, 60 healthy young volunteers were divided into four groups equally, who accepted 20 Hz real or sham tACS on left C3 or right C4. They were asked to complete four types of finger sequence key pressing tasks (left/right hand random/regular key pressing) before and after stimulation, while the EEG signals were collected and the reaction time and accuracy were observed. EEG signals were analyzed with multiple difference analysis of event-related spectral perturbation. Results The reaction time of contralateral hand reduced after C4 real stimulation. Conclusion Right 20 Hz tACS can improve the learning of contralateral limb sequential movement.

Key words: transcranial alternating current stimulation, serial reaction time task, electroencephalography, motor learning, event-related spectral perturbation

CLC Number: