What it is said versus how it is said: Comprehension of affective prosody in men with Klinefelter (47,XXY) syndrome

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Abstract
Difficulties in social communication in individuals with Klinefelter syndrome (XXY chromosomal pattern) have largely been attributed to deficits in left hemisphere-mediated, language functions. This study examined the ability of XXY men to decode emotions from tone of voice, a pragmatic aspect of social communication that may be associated with right hemisphere functioning. A total of 26 XXY men and 20 men from the general population completed tasks involving emotion discrimination in speech, based on verbal content or tone of voice. The XXY group displayed relative difficulties in discriminating emotions in tone of voice, and, to a lesser extend, in verbal content. This finding suggests that the XXY chromosomal pattern may not only be associated with difficulties in semantic aspects of language, but with prosodic aspects, as well. Our findings may contribute to the development of more comprehensive models addressing the role of the X chromosome in normal and abnormal development of social communication. (JINS, 2007, 13, 1065–1070.)