Reward anticipation in schizophrenia: A coordinate-based meta-analysis

Area of Science:

• Neuroscience
• Psychiatry
• Cognitive Science

Background:

• Reward processing deficits are associated with schizophrenia symptoms.
• Understanding these deficits is crucial for developing targeted treatments.

Purpose of the Study:

• To meta-analyze functional magnetic resonance imaging (fMRI) studies on reward anticipation in schizophrenia.
• To identify consistent neural underpinnings of reward processing impairments.

Main Methods:

• Coordinate-based meta-analysis of 11 Blood-oxygen-level-dependent (BOLD)-fMRI studies.
• Comparison of reward anticipation activation between schizophrenia patients and healthy controls.

Main Results:

• Reduced activation difference observed in schizophrenia patients within the frontal-striatal network.
• Meta-regression linked this functional signature to psychotic symptom severity.
• The observed pattern persisted regardless of antipsychotic medication dosage.

Conclusions:

• Schizophrenia is characterized by impaired reward anticipation within a specific brain network.
• This impairment is associated with clinical symptoms and is independent of medication.
• Findings highlight potential targets for therapeutic interventions in schizophrenia.