Differences between Correlates of Perceptual Style and Petrie Task Performance in Chronic and Acute Schizophrenics

Abstract

Acute schizophrenics open to perceptual stimuli are receptive to emotional stimuli and are intellectually able. Conversely, chronics maintaining active internal lives are inattentive to external stimuli. The Petrie procedure appears uncorrelated with the Silverman KFA. Overestimation after Petrie large-stimulus interpolation relates to passive behavior; overestimation after small-stimulus interpolation relates to good intellectual and psychological functioning among all, and among chronics to behavioral and conceptual expansiveness.