Decreased Functional Connectivity Between the Right Precuneus and Middle Frontal Gyrus Is Related to Attentional Decline Following Acute Sleep Deprivation

Frontiers in Neuroscience

Yang Chen¹  Bozhi Li²  Xi Zhang²  Ying Zhang³  Liwei Zhang⁴  Jiaxi Peng⁶  Yongcong Shao⁶ 

[1] Beijing Advanced Innovation Centre for Biomedical Engineering, Beihang University, Beijing, China;Department of Neurology, The Second Medical Center, National Clinical Research Centre for Geriatric Diseases, Chinese PLA General Hospital, Beijing, China;Department of Psychology Medical, The Eighth Medical Center, Chinese PLA General Hospital, Beijing, China;Key Laboratory of Behavioral Science, Institute of Psychology, Chinese Academy of Sciences, Beijing, China;School of Biological Science and Medical Engineering, Beihang University, Beijing, China;School of Psychology, Beijing Sport University, Beijing, China;

关键词: attention;    functional connectivity;    middle frontal gyrus;    precuneus;    sleep deprivation;   

DOI  :  10.3389/fnins.2020.530257

来源: DOAJ

【 摘 要 】

ObjectivesAcute sleep deprivation (SD) seriously affects cognitive functions, such as attention, memory, and response inhibition. Previous neuroimaging studies have demonstrated a close relationship between the functional activities of the precuneus (PC) and the function of alert attention. However, the specific effect of the PC on attention decline after acute SD has not been elucidated. In this study, we used resting-state functional magnetic resonance imaging (fMRI) to study the relationship between the changes of the PC functional connectivity and alertness decline after total SD.MethodsThirty healthy, right-handed adult men participated in the experiment. Alert attention and functional connectivity were assessed by the Psychomotor Vigilance Test and a resting-state fMRI scan before and after total SD. The region of interest to region of interest (“ROI-to-ROI”) correlation was employed to analyze the relationship between the PC and other brain regions after acute SD.ResultsParticipants showed decreased alert attention after total SD. In addition, SD induced decreased functional connectivity between the right PC and the right middle frontal gyrus (MFG). Moreover, there was a significant correlation between the decreased PC functional connectivity and alertness decline after total SD.ConclusionOur findings suggest that the interruption of the connection between the right PC and the right MFG is related to the observed decline in alert attention after acute SD. These results provide evidence further elucidating the cognitive impairment model of SD.

【 授权许可】

Unknown