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Revista Brasileira de Terapia Comportamental e Cognitiva
versão impressa ISSN 1517-5545
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BRITTO, Ilma A. Goulart de Souza; RODRIGUES, Christina A.; SANTOS, Daísy Cléia O. e RIBEIRO, Maurícia A.. Differential reinforcement of alternative verbal behavior of a schizophrenic patient. Rev. bras. ter. comport. cogn. [online]. 2006, vol.8, n.1, pp. 73-84. ISSN 1517-5545.
The objective of the present study was to investigate the verbal behavior of a 49-year-old man who had been diagnosed as chronical schizophrenic since he was 20 years old. The intervention was implemented in two response classes: psychotic speeches and appropriate speeches. The procedures of differential reinforcement of alternative behaviors and extinction were conducted by research assistants in 45-minute sessions, twice a week. Experimental control was obtained through an ABAB reversal design followed by Follow-up. All sessions were video recorded for posterior data reliability calculation. The study results show a reduction of psychotic speeches and an increase in appropriate speeches during intervention sessions. The data demonstrate that the verbal behavior of a person diagnosed as schizophrenic can be controlled by social reinforcement combined with extinction. Delusion and hallucinations were discussed as verbal behavior.
Palavras-chave : Psychotic speeches; Behavioral intervention; Schizophrenia.