Evaluation of fronto-striatal networks during cognitive control in unmedicated patients with schizophrenia and the effect of antipsychotic medication
Open accessAbstract
To understand the mechanism of cognitive control dysfunction in schizophrenia, it is critical to characterize brain function without the confounding effect of medication. It is also important to establish the extent to which antipsychotic medication restores brain function and whether those changes are related to psychosis improvement. Twenty-two patients with schizophrenia, initially unmedicated and after a 6-week course of risperidone, and 20 healthy controls (HC) studied twice, 6 weeks apart, performed an fMRI task. We examined group and longitudinal differences in anterior cingulate cortex (ACC), striatum, and midbrain functional activity during performance of a Stroop color task as well as activity patterns associated with improvement in psychosis symptoms. Unmedicated patients showed reduced functional activity in the ACC, striatum, and midbrain compared to HC. Post hoc contrasts from significant group-by-time interactions indicated that, in patients, drug administration was associated with both activity increases and decreases. In unmedicated patients, greater baseline functional activity in the striatum and midbrain predicted subsequent better treatment response. Greater changes in functional activity in ACC and ventral putamen over the course of 6 weeks positively correlated with better treatment response. Unmedicated patients show reduced activity in brain networks pivotal for cognitive control and medication is associated with functional changes in these regions. These results suggest a mechanism by which antipsychotic medication has a beneficial effect on cognition. Our results also support the notion that treatment response is determined by a combination of the baseline pattern of brain function and by the pharmacological modulation of these regions.
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Deficits in flexible updating are consistently linked to fronto-striatal dysfunction in patients.
“and are consistently linked to fronto-striatal dysfunction in patients [17, 28, 31–33].”
From Linking haploinsufficiency of the autism- and schizophrenia-associated gene Cyfip1 with striatal-limbic-cortical network dysfunction and cognitive inflexibility (2024) · cites this paper as [17]
The Introduction (page unavailable) says fronto-striatal dysfunction is widely reported in schizophrenia. The Abstract and Stroop task methods (pages unavailable) link reduced activity in these networks to cognitive control, but the study uses a Stroop color-naming task and does not establish a specific link to deficits in flexible updating. (LLM, conf=0.82)
Experimental — accuracy not yet measuredFronto-striatal fMRI activity has been linked to cognition in healthy populations, patients with schizophrenia, and individuals with genetic high risk for schizophrenia.
“Fronto-striatal fMRI activity has been linked to cognition in healthy populations [16], patients with schizophrenia [17], and individuals with genetic high risk for schizophrenia [18].”
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An integrative perspective on the role of dopamine in schizophrenia
Maia, T. V., & Frank, M. J. (2017) · Biological Psychiatry · doi:10.1016/j.biopsych.2016.05.021 · Cited by 293 · see citing works
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Haddon, J. E., Titherage, D., Heckenast, J. R., Carter, J., Owen, M. J., Hall, J., Wilkinson, L. S., & Jones, M. W. (2024) · Translational Psychiatry · doi:10.1038/s41398-024-02969-x · Cited by 6 · see citing works
“Fronto-striatal fMRI activity has been linked to cognition in healthy populations [16], patients with schizophrenia [17], and individuals with genetic high risk for schizophrenia [18].”
Background
- Authors
- Cadena, E. J., White, D. M., Kraguljac, N. V., Reid, M. A., & Lahti, A. C.
- Affiliations
- University of Alabama at Birmingham (US)
- Auburn University (US)
- Corresponding author
- Lahti, Adrienne C.
- Venue
- npj Schizophrenia
- Published
- 2018-05-07
- Volume
- 4
- Issue
- 1
- Pages
- 8-8
- ISSN
- 2334-265X (ISSN-L)
- PMC
- PMC5938238
- OpenAlex
- W2801311661
- Cited by
- 36
- References
- 1
- Citations by year
- 2025: 4 · 2024: 8 · 2023: 4 · 2022: 7 · 2021: 5 · 2020: 3 · 2019: 3 · 2018: 2
- FWCI
- 2.56
- Type
- journal article
- Language
- en
- Open access
- gold
- doi.org
- Locations
- Schizophrenia (publishedVersion, cc-by)
- Europe PMC (PubMed Central) (publishedVersion, cc-by)
- PubMed Central (publishedVersion, cc-by)
- PubMed (publishedVersion)
- DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion)
- Funders
- National Institutes of Health
- National Institute of Mental Health (R01MH102951)
- Janssen Pharmaceuticals
- Topics
- Health Sciences › Medicine › Psychiatry and Mental health › Schizophrenia research and treatment
- Life Sciences › Neuroscience › Cognitive Neuroscience › Neural and Behavioral Psychology Studies
- Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neurotransmitter Receptor Influence on Behavior
- Keywords
- cognitive control, fronto-striatal network, antipsychotic drugs, risperidone, unmedicated patients, anterior cingulate cortex, striatum, midbrain, ventral putamen, Stroop task, treatment response, psychotic symptoms, pharmacological modulation
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