Widespread Cortical Dysfunction in Schizophrenia: The FBIRN Imaging Consortium
Population
Approximately 125 patients with schizophrenia and approximately 125 controls
Comparison
fMRI imaging during memory and auditory target… vs Healthy controls
Design
Review
Authors
Discussion
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Member takes
Implication
Should not yet guide clinical management of hallucinations; leaves open whether auditory cortical patterns represent actionable biomarkers.
Key Points
- Investigate functional and structural cortical disruptions in schizophrenia using a large multi-site neuroimaging consortium dataset across memory and auditory processing tasks.
- Analyzed multi-site functional and structural MRI data from approximately 125 patients with schizophrenia and 125 healthy control participants.
- Evaluated cortical activation and functional connectivity during memory encoding, memory retrieval, and auditory target detection tasks.
- Conducted multivariate connectivity analysis, anatomical morphometry, and targeted genetic associations with dorsolateral prefrontal cortex activation.
- Observed cortical inefficiency during memory retrieval and decoupled neural activation relative to retrieval time in patients with schizophrenia.
- Identified abnormal activation in the left primary auditory and parietal cortices during both auditory detection and memory retrieval, specifically pronounced in patients with hallucinations.
- Demonstrated altered functional connectivity networks, significant anatomical differences, and identified six candidate genes associated with dorsolateral prefrontal cortex function.
Structured PICO
P
Population
Approximately 125 patients with schizophrenia and approximately 125 controls
I
Intervention
fMRI imaging during memory and auditory target detection tasks, anatomical imaging, and genetic analysis
C
Comparator
Healthy controls
O
Outcome
Cortical activation patterns, neural connectivity, and anatomical differencessurrogate
Multisite neuroimaging reveals widespread cortical dysfunction, abnormal circuitry, and anatomical differences in patients with schizophrenia compared to controls.
Cite This Study
Potkin et al. (2008) studied this question.