Abstract
This study examines the effect of emotional content on the verbal pragmatic aspects of discourse production in right-brain-damaged (RBD), left-brain-damaged (LBD), and normal control (NC) right-handed adults. Subject groups were matched for gender, age, education, and occupation; brain-damaged groups did not differ on months post CVA onset and lesion location. Subjects were screened to ensure that they demonstrated adequate cognitive and visual perceptual skills to participate in the study. Pictorial stimuli were used to elicit discourse that contained emotional and nonemotional (procedural, visuospatial) content. Trained raters evaluated each discourse for appropriateness on seven verbal pragmatic features (e.g., conciseness, quantity, relevancy). Across all three conditions, the brain-damaged groups were impaired relative to NCs. In the nonemotional conditions, LBDs were particularly impaired in pragmatics, whereas in the emotional condition, RBDs demonstrated pragmatic deficits. Emotional content appeared to facilitate pragmatic performance among LBD aphasics and to suppress pragmatic performance among RBDs.
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