Abstract
Twenty-nine schizophrenic outpatients provided speech samples on affectively positive and negative topics. These samples were assessed for several different types of communication failures by using the Communication Disturbances Index. Frequencies of overinclusive references, ambiguous word meanings, and ambiguous referents increased in the affectively negative condition; frequencies of missing referents and instances of syntactic unclarity did not change across affective conditions. Degree of overall affective reactivity of speech was associated with severity of the core positive schizophrenic syndrome. These findings support the idea that different types of schizophrenic communication disturbances are associated with different underlying pathophysiological processes, that some are more reactive to affect than others, and that affective reactivity of these symptoms is associated with the positive schizophrenic process.
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