Motion energy analysis during speech tasks in medication-naïve individuals with at-risk mental states for psychosis

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SUMMARY

    In Kupper et_al`s MEA study, 27 schizophrenia patients and 27 controls underwent role-play tests of 14 scenes. The variables evaluated were defined based on Dean et_al`s study, which analyzed head and body movement, and for each ROI of interest were obtained the mean amplitude of motion across the entire video analysis and the coefficient of variability (standard deviation of amplitude of motion divided by mean amplitude of motion across the entire video analysis)25. In the base study the total amount of movement was analyzed, however, the videos analyzed here had . . .

     

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