Deficient biological motion perception in schizophrenia: results from a motion noise paradigm.

Perceptual thresholds for detecting coherent motion (the minimum coherence level guaranteeing 80% accuracy) were higher (lower performance level) in patients than in controls [controls: 25.05 ( SD = 16.05), patients: 43.25( SD = 36.06)]; the group difference was marginally significant ( p = 0.049, Cohen's d = 0.65).

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