Open AccessNeural correlates of dynamic changes in working memory performance during one night of sleep deprivation
Author(s) -
Zhu Yuanqiang,
Xi Yibin,
Sun Jinbo,
Guo Fan,
Xu Yongqiang,
Fei Ningbo,
Zhang Xinxin,
Yang Xuejuan,
Yin Hong,
Qin Wei
Publication year - 2019
Publication title -
human brain mapping
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.005
H-Index - 191
eISSN - 1097-0193
pISSN - 1065-9471
DOI - 10.1002/hbm.24596
Subject(s) - chronotype , sleep deprivation , circadian rhythm , effects of sleep deprivation on cognitive performance , psychology , audiology , working memory , functional magnetic resonance imaging , morning , sleep (system call) , cognition , neuroscience , medicine , computer science , operating system
Total sleep deprivation (TSD) is common in modern society leading to deterioration of multiple aspects of cognition. Dynamic interaction effect of circadian rhythmicity and homeostatic sleep pressure on sustained attention have been intensively investigated, while how this effect was represented on performance and cerebral responses to working memory, another important element of many neurobehavioral tasks, was not well elucidated. Thirty‐six healthy subjects with intermediate chronotype performed the Sternberg working‐memory task (SWMT) while undergoing functional magnetic resonance imaging every 2 hr from 10:00 p.m. on the first day to 6:00 a.m. on the second day. Using data from three imaging sessions (10:00 p.m., 04:00 a.m., and 06:00 a.m.), we found that the slowest SWMT reaction time and weakest cerebral responses were not at the end of TSD (06:00 a.m.) but during the early morning (04:00 a.m.) hours of the TSD. In addition, during this worst period of TSD, reaction time for the SWMT were found to be negatively correlated with task‐related activation in the angular gyrus and positively correlated with the degree of negative correlation between the control and default networks. Our results revealed a rebound of SWMT reaction time and cerebral responses after the mid‐time point of regular biological sleep night and provided more evidence that different cognitive tasks are differentially affected by sleep loss and circadian rhythmicity.