Experimental manipulation of continuous speech in schizophrenic patients.

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Abstract
A method was developed for obtaining extended continuous speech samples from hospitalized schizophrenics. 1 group was reinforced for self-referred affect statements, 1 group for speech in general, and 1 group served as a no-reinforcement control. The effect of reinforcement proved specific to the response class reinforced, whether narrow (self-referred affect statements) or more general (total speech output). The conditioning process progresses from broad classes to the particular one on which reinforcement is contingent. The problem of respons-class identification and other implications of the findings are discussed. (36 ref.) (PsycINFO Database Record (c) 2006 APA, all rights reserved)

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