Aberrant activity at rest of the associative striatum in schizophrenia: Meta-analyses of the amplitude of low frequency fluctuations.

Autor: Fortier A; Centre de recherche de l'Institut Universitaire en Santé Mentale de Montréal, Montreal Quebec, Canada; Department of Psychiatry and Addiction, Faculty of Medicine, University of Montreal, Montreal, Quebec, Canada., Dumais A; Centre de recherche de l'Institut Universitaire en Santé Mentale de Montréal, Montreal Quebec, Canada; Department of Psychiatry and Addiction, Faculty of Medicine, University of Montreal, Montreal, Quebec, Canada; Philippe-Pinel National Institute of Legal Psychiatry, Montreal, Canada., Boisvert M; Centre de recherche de l'Institut Universitaire en Santé Mentale de Montréal, Montreal Quebec, Canada; Department of Psychiatry and Addiction, Faculty of Medicine, University of Montreal, Montreal, Quebec, Canada., Zouaoui I; Centre de recherche de l'Institut Universitaire en Santé Mentale de Montréal, Montreal Quebec, Canada; Department of Psychiatry and Addiction, Faculty of Medicine, University of Montreal, Montreal, Quebec, Canada., Chung CF; Centre de recherche de l'Institut Universitaire en Santé Mentale de Montréal, Montreal Quebec, Canada; Department of Psychiatry and Addiction, Faculty of Medicine, University of Montreal, Montreal, Quebec, Canada., Potvin S; Centre de recherche de l'Institut Universitaire en Santé Mentale de Montréal, Montreal Quebec, Canada; Department of Psychiatry and Addiction, Faculty of Medicine, University of Montreal, Montreal, Quebec, Canada. Electronic address: stephane.potvin@umontreal.ca.
Jazyk: angličtina
Zdroj: Journal of psychiatric research [J Psychiatr Res] 2024 Nov; Vol. 179, pp. 117-132. Date of Electronic Publication: 2024 Sep 11.
DOI: 10.1016/j.jpsychires.2024.09.012
Abstrakt: Schizophrenia is a severe psychiatric disorder associated with brain alterations at rest. Amplitude of low-frequency fluctuations (ALFF) and its fractional version (fALFF) have been widely used to investigate alterations in spontaneous brain activity in schizophrenia. However, results are still inconsistent. Furthermore, while these measurements are similar, they showed some differences, and no meta-analysis has been yet performed to compare them in schizophrenia. Thus, we conducted systematic research in five databases and in the grey literature to find articles investigating fALFF and/or ALFF alterations in schizophrenia. Two separate meta-analyses were performed using the SDM-PSI software to identify fALFF and ALFF alterations separately. Then, a conjunction analysis was conducted to determine congruent results between the two approaches. We found that patients with schizophrenia showed altered fALFF activity in the left insula/putamen, the right paracentral lobule and the left middle occipital gyrus compared to healthy individuals. Patients with schizophrenia exhibited ALFF alterations in the bilateral putamen, the bilateral caudate nucleus, the bilateral inferior frontal gyrus, the right precuneus, the right precentral gyrus, the left postcentral gyrus, the right posterior cingulate gyrus, compared to healthy controls. ALFF increased activity in the left putamen was higher in drug-naïve patients and was correlated with positive symptoms. The conjunction analysis revealed a spatial convergence between fALFF and ALFF studies in the left putamen. This left putamen cluster is part of the associative striatum. Its alteration in schizophrenia provides additional support to the influential aberrant salience hypothesis of psychosis.
Competing Interests: Declaration of competing interest None to declare.
(Copyright © 2024 Elsevier Ltd. All rights reserved.)
Databáze: MEDLINE
Externí odkaz: