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Friedreich Ataxia MRI Study Finds 3 Progression Subtypes

Photoreal illustration of brain regions affected in Friedreich ataxia with overlay of MRI imaging modalities, conveying multi-pattern subtypes.

A 2026 longitudinal MRI preprint involving 54 people with Friedreich ataxia and 57 controls found 3 biologically interpretable progression subtypes: microstructure-dominant, macrostructure-dominant, and minimal/no progression.1 The clusters make biomarker heterogeneity visible at the research level, while the classifier remains too early to assign individual patients to treatment paths. Research Highlights 3 MRI progression subtypes emerged: …

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fMRI Biotypes Predicted tDCS Anxiety Response in Older Adults

Photoreal illustration of a clinician fitting a tDCS device on an older adult, with brain network biotype overlays.

A 2026 BETA analysis of 199 older adults found that resting-state fMRI could separate 4 anxiety-related tDCS response patterns, but the result was narrower than “brain scan predicts treatment”: only the Robust tDCS Responder subtype showed a statistically reliable Active vs. Sham anxiety advantage across all participants.1 Research Highlights Only 1 subtype cleared the Active …

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Machine Learning Predicts Clozapine Initiation in Schizophrenia

Photoreal illustration of an electronic health record dashboard with clinical text and a model output highlighted, representing ML prediction in psychiatry.

Clozapine is the only medication with proven efficacy for treatment-resistant schizophrenia, yet most eligible patients wait years before starting it. A 2026 paper by Perfalk and colleagues trains a machine-learning model on routine electronic health record data to flag candidates earlier.1 Research Highlights Clozapine is the only evidence-based treatment for treatment-resistant schizophrenia (TRS), but the …

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Quetiapine Dosing for Depression Optimized with XGBoost Algorithm (2024 Study)

Depression is a globally pervasive mental illness that often requires complex treatment strategies. One such strategy involves the use of Quetiapine, an antipsychotic medication, as an augmentation to antidepressants. However, determining the optimal dose of Quetiapine is challenging due to individual variability. A recent study utilizes machine learning techniques to develop a predictive model for …

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