A cognitive investigation of schizophrenic delusions

Psychiatry Interpersonal & Biological Processes (Impact Factor: 3.18). 12/1979; 42(4):312-9.
Source: PubMed

ABSTRACT Delusions have traditionally been regarded as unmodifiable false beliefs. Both Freud (1911) and Jaspers (1968) argue that there is a unidirectional relationship between a delusional belief and consensually validatable realtiy: the delusion structures reality in accordance with the delusion's demand. In contrast, we postulate that there is a bidirectional interaction between the delusion and external events. We believe that external events might modify the rigid belief when there is a dramatic incongruity between specific beliefs and selected events. The following investigation was motivated by a desire to understand more clearly how some overtly delusional patients come to lose their delusions during the course of treatment for schizophrenia. Do delusions simply melt away under the influence of major tranquilizers, or does the delusional patient play some active part in assessing the validity of this belief?

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    • "In regard to research on dimensions of delusions, while we have focused on three dimensions, other important dimensions or characteristics of delusions also have become the subject of research and analysis (Hole et al. 1979; Rudden et al. 1982; Kendler et al. 1983; Garety and Hemsley 1994; Appelbaum et al. 1999). Some of these other dimensions include extension (Hole et al. 1979; Kendler et al. 1983; Brockington 1991; Appelbaum et al. 1999), fixity of ideas (Eisen et al. 1998), negative affect (Appelbaum et al. 1999), mood-congruent versus -incongruent delusions (Coryell and Tsuang 1985; Tohen et al. 1992; Harrow et al. 20006), and interference (Garety and Hemsley 1987). "
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