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Cerebral mechanisms for understanding emotional prosody in speech
Authors:Pell Marc D
Affiliation:McGill University, School of Communication Sciences and Disorders, 1266 ave. des Pins ouest, Montréal, Que., Canada H3G 1A8. marc.pell@mcgill.ca
Abstract:Hemispheric contributions to the processing of emotional speech prosody were investigated by comparing adults with a focal lesion involving the right (n = 9) or left (n = 11) hemisphere and adults without brain damage (n = 12). Participants listened to semantically anomalous utterances in three conditions (discrimination, identification, and rating) which assessed their recognition of five prosodic emotions under the influence of different task- and response-selection demands. Findings revealed that right- and left-hemispheric lesions were associated with impaired comprehension of prosody, although possibly for distinct reasons: right-hemisphere compromise produced a more pervasive insensitivity to emotive features of prosodic stimuli, whereas left-hemisphere damage yielded greater difficulties interpreting prosodic representations as a code embedded with language content.
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