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@ARTICLE{Dong:873862,
author = {Dong, Debo and Luo, Cheng and Guell, Xavier and Wang, Yulin
and He, Hui and Duan, Mingjun and Eickhoff, Simon and Yao,
Dezhong},
title = {{C}ompression of cerebellar functional gradients in
schizophrenia},
journal = {Schizophrenia bulletin},
volume = {46},
number = {5},
issn = {1745-1701},
address = {Oxford},
publisher = {Oxford Univ. Press},
reportid = {FZJ-2020-01054},
pages = {1282–1295},
year = {2020},
note = {This work was partly supported by the grant from the
National Key $R\&D$ Program of China (No. 2018YFA0701400),
grants from the National Nature Science Foundation of China
(No. 61933003, 81771822, 81861128001, and 81771925), the
CAMS Innovation Fund for Medical Sciences (CIFMS) (No.
2019-I2M-5-039) and the Project of Science and Technology
Department of Sichuan Province (No. 2019YJ0179).
AcknowledgmentsThe authors declare no conflicts of
interests. We are grateful to all the participants in this
study. Our thanks also go to Dr. Xi Chen (Civil Aviation
Flight University of China) and Mr. Xin Chang (University of
Electronic Science and Technology of China) for their help
to collect the dataset.},
abstract = {Our understanding of cerebellar involvement in brain
disorders has evolved from motor processing to high-level
cognitive and affective processing. Recent neuroscience
progress has highlighted hierarchy as a fundamental
principle for the brain organization. Despite substantial
research on cerebellar dysfunction in schizophrenia, there
is a need to establish a neurobiological framework to better
understand the co-occurrence and interaction of low- and
high-level functional abnormalities of cerebellum in
schizophrenia. To help to establish such a framework, we
investigated the abnormalities in the distribution of
sensorimotor-supramodal hierarchical processing topography
in the cerebellum and cerebellar-cerebral circuits in
schizophrenia using a novel gradient-based resting-state
Functional-connectivity(FC) analysis (96 patients with
schizophrenia vs. 120 healthy controls). We found
schizophrenia patients showed a compression of the principal
motor-to-supramodal gradient. Specifically, there were
increased gradient values in sensorimotor regions and
decreased gradient values in supramodal regions, resulting
in a shorter distance (compression) between the sensorimotor
and supramodal poles of this gradient. This pattern was
observed in intra-cerebellar, cerebellar-cerebral, and
cerebral-cerebellar FC. Further investigation revealed
hyper-connectivity between sensorimotor and cognition areas
within cerebellum, between cerebellar sensorimotor and
cerebral cognition areas, and between cerebellar cognition
and cerebral sensorimotor areas, possibly contributing to
the observed compressed pattern. These findings present a
novel mechanism that may underlie the co-occurrence and
interaction of low- and high-level functional abnormalities
of cerebellar and cerebro-cerebellar circuits in
schizophrenia. Within this framework of abnormal
motor-to-supramodal organization, a cascade of impairments
stemming from disrupted low-level sensorimotor system may in
part account for high-level cognitive cerebellar dysfunction
in schizophrenia.Keywords: Schizophrenia; Sensorimotor;
Cerebellum; Cerebellar-cerebral Circuits; Resting-state
Functional connectivity; Functional Gradient},
cin = {INM-7},
ddc = {610},
cid = {I:(DE-Juel1)INM-7-20090406},
pnm = {572 - (Dys-)function and Plasticity (POF3-572)},
pid = {G:(DE-HGF)POF3-572},
typ = {PUB:(DE-HGF)16},
pubmed = {32144421},
UT = {WOS:000593174100030},
doi = {10.1093/schbul/sbaa016},
url = {https://juser.fz-juelich.de/record/873862},
}