Speech markers of depression: cross-sectional discrimination, longitudinal association, and treatment response prediction

Objective: To identify speech features distinguishing adults with depression from healthy controls, evaluate whether these features track with depression severity during naturalistic treatment, and assess whether baseline speech features predict treatment response. Design: Cross-sectional group comparison (Objective A) followed by longitudinal evaluation in an independent sample (Objectives B and C). Candidate features surviving false discovery rate (FDR) correction in the cross-sectional analysis were carried forward to longitudinal and predictive analyses. Setting: A community mental health

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