Volume 33, Issue 4 e14080
RESEARCH ARTICLE

Dysfunction of large-scale brain networks underlying cognitive impairments in shift work disorder

Yan Zhao

Yan Zhao

Beijing Key Laboratory of Mental Disorders, National Clinical Research Center for Mental Disorders & National Center for Mental Disorders, Beijing Anding Hospitaldiscu, Capital Medical University, Beijing, China

Advanced Innovation Center for Human Brain Protection, Capital Medical University, Beijing, China

Contribution: Writing - original draft, ​Investigation, Formal analysis, Methodology

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Sitong Feng

Sitong Feng

Beijing Key Laboratory of Mental Disorders, National Clinical Research Center for Mental Disorders & National Center for Mental Disorders, Beijing Anding Hospitaldiscu, Capital Medical University, Beijing, China

Advanced Innovation Center for Human Brain Protection, Capital Medical University, Beijing, China

Contribution: Writing - original draft, ​Investigation, Formal analysis, Methodology

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Linrui Dong

Linrui Dong

Beijing Key Laboratory of Mental Disorders, National Clinical Research Center for Mental Disorders & National Center for Mental Disorders, Beijing Anding Hospitaldiscu, Capital Medical University, Beijing, China

Advanced Innovation Center for Human Brain Protection, Capital Medical University, Beijing, China

Contribution: ​Investigation, Data curation

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Ziyao Wu

Ziyao Wu

Beijing Key Laboratory of Mental Disorders, National Clinical Research Center for Mental Disorders & National Center for Mental Disorders, Beijing Anding Hospitaldiscu, Capital Medical University, Beijing, China

Advanced Innovation Center for Human Brain Protection, Capital Medical University, Beijing, China

Contribution: ​Investigation, Data curation

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Yanzhe Ning

Corresponding Author

Yanzhe Ning

Beijing Key Laboratory of Mental Disorders, National Clinical Research Center for Mental Disorders & National Center for Mental Disorders, Beijing Anding Hospitaldiscu, Capital Medical University, Beijing, China

Advanced Innovation Center for Human Brain Protection, Capital Medical University, Beijing, China

Correspondence

Yanzhe Ning, Beijing Key Laboratory of Mental Disorders, National Clinical Research Center for Mental Disorders & National Center for Mental Disorders, Beijing Anding Hospital, Capital Medical University, Beijing, China.

Email: [email protected]

Contribution: Conceptualization, Methodology, ​Investigation, Funding acquisition, Writing - review & editing

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First published: 27 October 2023
Citations: 4

Yan Zhao and Sitong Feng contributed equally to this work.

Summary

It has been demonstrated that shift work can affect cognitive functions. Several neuroimaging studies have revealed altered brain function and structure for patients with shift work disorder (SWD). However, knowledge on the dysfunction of large-scale brain networks underlying cognitive impairments in shift work disorder is limited. This study aims to identify altered functional networks associated with cognitive declines in shift work disorder, and to assess their potential diagnostic value. Thirty-four patients with shift work disorder and 36 healthy controls (HCs) were recruited to perform the Repeatable Battery for the Assessment of Neuropsychological Status (RBANS) and resting-state functional scans. After surface-based preprocessing, we calculated within- and between-network functional connectivity (FC) using the Dosenbach atlas. Moreover, correlation analysis was done between altered functional connectivity of large-scale brain networks and scores of cognitive assessments in patients with shift work disorder. Finally, we established a classification model to provide features for patients with shift work disorder concerning the disrupted large-scale networks. Compared with healthy controls, increased functional connectivity within-networks across the seven brain networks, and between-networks involving ventral attention network (VAN)-subcortical network (SCN), SCN-frontoparietal network (FPN), and somatosensory network (SMN)-SCN were observed in shift work disorder. Decreased functional connectivity between brain networks was found in shift work disorder compared with healthy controls, including visual network (VN)-FPN, VN-default mode network (DMN), SMN-DMN, dorsal attention network (DAN)-DMN, VAN-DMN, and FPN-DMN. Furthermore, the altered functional connectivity of large-scale brain networks was significantly correlated with scores of immediate memory, visuospatial, and delayed memory in patients with shift work disorder, respectively. Abnormal functional connectivity of large-scale brain networks may play critical roles in cognitive dysfunction in shift work disorder. Our findings provide new evidence to interpret the underlying neural mechanisms of cognitive impairments in shift work disorder.

CONFLICT OF INTEREST STATEMENT

The authors declare that there was no conflict of interest.

DATA AVAILABILITY STATEMENT

The data that support the findings of this study are available on request from the corresponding author. The data are not publicly available due to privacy or ethical restrictions.

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