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Congenital Amusia: Behavioral and Neural Correlates| old_uid | 3761 |
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| title | Congenital Amusia: Behavioral and Neural Correlates |
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| start_date | 2008/01/07 |
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| schedule | 11h-12h |
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| online | no |
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| location_info | bât. enseignement, salle 1302 |
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| details | lieu à confirmer |
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| summary | Human societies have always produced and enjoyed music, but about four percent of the general population is not able to do so (Kalmus and Fry, 1980). Recently, a large research effort has been made to study the origins of such a disorder, termed ‘congenital amusia’ (or tone-deafness; Peretz et al., 2001). This disorder is characterized by a severe life-long impairment in both the perception and production of music, that prevents otherwise normally functioning individuals from developing basic musical skills. Here, both the behavioral and neural correlates of congenital amusia will be reviewed. Behavioral evidence suggests that congenital amusia is principally due to a deficit in the processing of pitch information, while time processing appears to be less affected (Ayotte et al., 2002; Hyde and Peretz, 2004; Hyde and Peretz, 2005).
Recently, structural brain imaging techniques have revealed brain anatomical differences in the right inferior frontal gyrus and right auditory cortex of congenital amusic individuals relative to musically-intact controls, which were related to performance on pitch-based musical tasks (Hyde et al, 2006). These findings are important from a functional perspective since these regions are important in melodic processing, which is a key deficit in congenital amusia. One attractive hypothesis is that these neural anomalies observed in the amusic brain may be related to a malformation in cortical development, which would lend to the observed musical impairments in congenital amusia.
The results suggest that an intact right fronto-temporal network may be important in acquiring normal musical competence. |
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| oncancel | séance annulée |
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| responsibles | Gervais |
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