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Updated: Mar 28, 2026

Cerebral Blood Flow-Based Resting State Functional Connectivity of the Human Brain using Optical Diffuse Correlation Spectroscopy
Published on: May 27, 2020
Cognition and resting-state functional connectivity in schizophrenia.
Julia M Sheffield1, Deanna M Barch2
1Washington University in St Louis, Department of Psychology, 1 Brookings Drive, St Louis, MO 63130, USA.
Schizophrenia patients show altered brain connectivity in key networks, impacting cognitive functions. These widespread brain-behavior relationships suggest shared mechanisms underlie generalized cognitive deficits.
Area of Science:
- Neuroscience
- Cognitive Neuroscience
- Psychiatry
Background:
- Individuals with schizophrenia exhibit significant cognitive deficits across multiple domains.
- The underlying neurobiological causes of these cognitive impairments are not fully understood.
Purpose of the Study:
- To systematically review studies examining brain-behavior relationships in schizophrenia using resting-state functional magnetic resonance imaging (rs-fcMRI).
- To elucidate the neurobiological basis of cognitive deficits in schizophrenia by analyzing functional connectivity abnormalities.
Main Methods:
- Systematic review of rs-fcMRI studies investigating functional connectivity in schizophrenia.
- Analysis of brain-behavior relationships between connectivity abnormalities and cognitive performance.
Main Results:
- Patients with schizophrenia display functional connectivity abnormalities within and between the cortico-cerebellar-striatal-thalamic loop and cortical networks (task-positive and task-negative).
- No unique relationships were found between specific connectivity abnormalities and distinct cognitive domains.
Conclusions:
- Functional systems, rather than specific regions, may underlie shared mechanisms contributing to generalized cognitive deficits in schizophrenia.
- Methodological advancements are needed to strengthen the understanding of brain-behavior relationships in schizophrenia.
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