Thought disorder in schizophrenia and mania: Impaired context

dThis research studied hypotheses that positive thought disorder in schizop hrenia is influenced by patients' not taking in immediate target contextual material, thereby losing vital cues that guide thought processes. We asses sed 164 acute inpatients (including 55 schizophrenia and 31 bipolar disorde r patients), using standardized measures of thought disorder. We also used new measures that assessed (1) total ignoring of context, and (2) straying from the context, Results were as follows: (1) only 9 percent of the schizo phrenia patients showed strong evidence of completely ignoring the external context; (2) straying from the external context while simultaneously maint aining part of the context was significantly more common than complete abse nce of context (p < 0.01); (3) patients with thought disorder strayed from the context significantly more than patients without thought disorder (p < 0.001); and (4) straying from the context was involved in the thought disor der of some, but not all, schizophrenia and mania patients. The data sugges t that thought disorder in schizophrenia is not typically due to a failure to "hear" or to take in the relevant contextual material necessary for an a ppropriate response, Loss of context is involved in some, but not all, thou ght disorder in schizophrenia and mania.