Longitudinal MRI study links brain morphometry to treatment in schizophrenia spectrum disorders

This is an observational cohort study using longitudinal structural MRI data from 350 individuals with schizophrenia spectrum disorders and 193 healthy controls, totaling 543 subjects from 1293 MRI data points over up to 20 years. The study examined morphometric similarity network dynamics (MIND) in relation to treatment duration, medication, and psychiatric symptoms.

The authors report that MIND features were longitudinally associated with treatment duration and medication in schizophrenia spectrum disorders. These associations were co-localized with hierarchical axes of cortical organization and schizophrenia epicenters. Psychiatric symptoms were associated with alterations in structural similarity, which were also related to treatment duration.

Effect sizes, absolute numbers, and p-values or confidence intervals were not reported in the abstract. The study did not report adverse events or discontinuations.

Limitations include the absence of detailed methodological information in the abstract and the observational nature of the data, which precludes causal inference. The authors acknowledge that certainty was not quantified in the abstract.

Practice relevance is limited to advancing understanding of how brain organization, treatment duration, and medication may shape clinical symptoms in schizophrenia spectrum disorders. Findings should not be generalized beyond the studied population.