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CJAP ›› 2020, Vol. 36 ›› Issue (6): 590-594.doi: 10.12047/j.cjap.6030.2020.124

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Effect of 36h total sleep deprivation on the object working memory: an ERP study

PENG Zi-yi1, CHEN Xue-wei2, ZHANG Ying3, YANG Ye-bing3, ZHANG Li-wei4, SHAO Yong-cong1△   

  1. 1. School of Psychology, Beijing Sport University, Beijing 100084;
    2. Department of Operational Medicine, Tianjin Institute of Environmental and Operational Medicine, Tianjin 300050;
    3. The General Hospital of the People's Liberation Army, Beijing 100853;
    4. Institute of Psychology of the Chinese Academy of Sciences, Beijing 100101, China
  • Received:2020-03-06 Revised:2020-11-19 Online:2020-11-28 Published:2021-03-15

Abstract: Objective: To investigate the effects of 36 h total sleep deprivation (TSD) on object working memory by event related potential(ERP). Methods: We used a pre-post-design, sixteen healthy college students (age range: 21-28 years, mean age: 23 years) received object working memory tasks while awake and after 36 hours of TSD and simultaneously recording electroencephalograph (EEG) data while completing 2-back object working memory tasks. ERP data were statistically analyzed using repeated measurements analysis of variance to observe the changes in the working memory-related P2, N2 and P3 components. Results: After 36 h TSD, the latency of N2 waves related to object working memory significantly was prolonged (P<0.05), and the amplitude was decreased, but difference did not reach statistical significance (P>0.05). The latency of P2 was significantly prolonged after TSD (P<0.05). There was no significant difference in the change of latency and amplitude of P3 waves (P>0.05). Conclusion: 36 h of total sleep deprivation affected working memory-related components and impaired object working memory capacity.

Key words: sleep deprivation, object working memory, ERP

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