Language
English
Publication Date
7-4-2023
Journal
Schizophrenia
DOI
10.1038/s41537-023-00371-y
PMID
37402747
PMCID
PMC10319786
PubMedCentral® Posted Date
7-4-2023
PubMedCentral® Full Text Version
Post-print
Abstract
Although many studies have showed abnormal thalamocortical networks in patients with schizophrenia (SCZ), the dynamic functional thalamocortical connectivity of individuals with SCZ and the effect of antipsychotics on this connectivity have not been investigated. Drug-naïve first-episode individuals with SCZ and healthy controls were recruited. Patients were treated with risperidone for 12 weeks. Resting-state functional magnetic resonance imaging was acquired at baseline and week 12. We identified six functional thalamic subdivisions. The sliding window strategy was used to determine the dynamic functional connectivity (dFC) of each functional thalamic subdivision. Individuals with SCZ displayed decreased or increased dFC variance in different thalamic subdivisions. The baseline dFC between ventral posterior-lateral (VPL) portions and right dorsolateral superior frontal gyrus (rdSFG) correlated with psychotic symptoms. The dFC variance between VPL and right medial orbital superior frontal gyrus (rmoSFG) or rdSFG decreased after 12-week risperidone treatment. The decreased dFC variance between VPL and rmoSFG correlated with the reduction of PANSS scores. Interestingly, the dFC between VPL and rmoSFG or rdSFG decreased in responders. The dFC variance change of VPL and the averaged whole brain signal correlated with the risperidone efficacy. Our study demonstrates abnormal variability in thalamocortical dFC may be implicated in psychopathological symptoms and risperidone response in individuals with schizophrenia, suggesting that thalamocortical dFC variance may be correlated to the efficacy of antipsychotic treatment.
Keywords
Schizophrenia, Schizophrenia, Biomarkers
Published Open-Access
yes
Recommended Citation
Yang, Mi; Liu, Liju; Cui, Hongmei; et al., "Dynamic Functional Thalamocortical Dysconnectivity in Schizophrenia Correlates to Antipsychotics Response" (2023). Faculty and Staff Publications. 6041.
https://digitalcommons.library.tmc.edu/baylor_docs/6041
Included in
Medical Sciences Commons, Medical Specialties Commons, Mental and Social Health Commons, Psychiatry and Psychology Commons
Comments
Registration: ClinicalTrials.gov Identifier: NCT00435370. https://www.clinicaltrials.gov/ct2/show/NCT00435370?term=NCT00435370&draw=2&rank=1