Fig 3. Covariance of speech features and clinical state over time.

(A) An example of clinical state (provider global assessment rating, black line) transitions within an individual patient over time compared to the individual’s highest performing linguistic feature (word count per speech sample, dotted grey line) for each call to the MCC system. (B) Increased correlations between clinical state and speech features over time highlighted through percent of maximal change of 8-period moving averages for provider rating (black line), word count (dotted grey line), and verbal pause percent (dotted light grey line) for the same patient and period.