000911694 001__ 911694
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000911694 0247_ $$2doi$$a10.1101/2022.09.27.22280420
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000911694 037__ $$aFZJ-2022-04948
000911694 1001_ $$0P:(DE-HGF)0$$aGrot, Stéphanie$$b0
000911694 245__ $$aLabel-based meta-analysis of functional brain dysconnectivity across mood and psychotic disorders
000911694 260__ $$c2022
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000911694 520__ $$aBACKGROUND Psychiatric diseases are increasingly conceptualized as brain network disorders. Hundreds of resting-state functional magnetic resonance imaging (rsfMRI) studies have revealed patterns of functional brain dysconnectivity in disorders such as major depression disorder (MDD), bipolar disorder (BD) and schizophrenia (SZ). Although these disorders have been mostly studied in isolation, there is mounting evidence of shared neurobiological alterations across disorders.METHODS To uncover the nature of the relatedness between these psychiatric disorders, we conducted an innovative meta-analysis of past functional brain dysconnectivity findings obtained separately in MDD, BD and SZ. Rather than relying on a classical coordinate-based approach at the voxel level, our procedure extracted relevant neuroanatomical labels from text data and reported findings at the whole brain network level. Data were drawn from 428 rsfMRI studies investigating MDD (158 studies, 7429 patients / 7414 controls), BD (81 studies, 3330 patients / 4096 patients) and/or SZ (223 studies, 11168 patients / 11754 controls). Permutation testing revealed commonalities and specificities in hypoconnectivity and hyperconnectivity patterns across disorders.RESULTS Among 78 connections within or between 12 cortico-subcortical networks, hypoconnectivity and hyperconnectivity patterns of higher-order cognitive (default-mode, fronto-parietal, cingulo-opercular) networks were similarly observed across the 3 disorders. By contrast, dysconnectivity of lower-order (somatomotor, visual, auditory) networks in some cases differed between disorders, notably dissociating SZ from BD and MDD.CONCLUSIONS Our label-based meta-analytic approach allowed a comprehensive inclusion of prior studies. Findings suggest that functional brain dysconnectivity of higher-order cognitive networks is largely transdiagnostic in nature while that of lower-order networks may best discriminate mood and psychotic disorders, thus emphasizing the relevance of motor and sensory networks to psychiatric neuroscience.
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000911694 7001_ $$0P:(DE-HGF)0$$aSmine, Salima$$b1
000911694 7001_ $$0P:(DE-HGF)0$$aPotvin, Stéphane$$b2
000911694 7001_ $$0P:(DE-HGF)0$$aDarcey, Maëliss$$b3
000911694 7001_ $$0P:(DE-HGF)0$$aPavlov, Vilena$$b4
000911694 7001_ $$0P:(DE-Juel1)161225$$aGenon, Sarah$$b5
000911694 7001_ $$0P:(DE-HGF)0$$aNguyen, Hien$$b6
000911694 7001_ $$0P:(DE-HGF)0$$aOrban, Pierre$$b7
000911694 773__ $$a10.1101/2022.09.27.22280420$$tmedRxiv$$y2022
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