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Disrupted Salience and Cingulo-Opercular Network Connectivity During Impaired Rapid Instructed Task Learning in
Julia M Sheffield1, Holger Mohr2, Hannes Ruge2
1Department of Psychiatry and Behavioral Sciences, Vanderbilt University Medical Center.
Summary
Impaired brain network connectivity, specifically between the cingulo-opercular network (CON) and salience network (SAN), is linked to deficits in rapid instructed task learning (RITL) in schizophrenia patients.
Area of Science:
- Neuroscience
- Cognitive Psychology
- Psychiatry
Background:
- Rapid instructed task learning (RITL) is a key human cognitive ability crucial for goal-directed behavior.
- Schizophrenia is associated with impaired RITL, but the underlying neural mechanisms, particularly functional network connectivity, remain unclear.
Purpose of the Study:
- To investigate task-based functional network connectivity during RITL in individuals with schizophrenia compared to controls.
- To identify specific network connectivity patterns that predict diagnostic group and correlate with RITL performance.
Main Methods:
- Examined connectivity of eight predefined functional brain networks during an RITL task in 29 schizophrenia patients and 31 healthy controls.
- Utilized multivariate pattern analysis to identify connectivity patterns distinguishing the groups.
Main Results:
- Connectivity between the cingulo-opercular network (CON) and salience network (SAN) during learning accurately classified participants (80% accuracy).
- Reduced CON-SAN connectivity during learning was significantly associated with poorer RITL task performance in schizophrenia patients.
Conclusions:
- Impaired interactions between the CON (task goal maintenance) and SAN (salient stimulus identification) contribute to RITL deficits in schizophrenia.
- Findings highlight the role of specific functional brain network dysconnectivity in cognitive impairments associated with schizophrenia.
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