Congenital amusia is a lifelong disorder of musical processing for which no effective treatments have been found. The present study aimed to treat amusics’ impairments in pitch direction identification through auditory training. Prior to training, twenty Chinese-speaking amusics and 20 matched controls were tested on the Montreal Battery of Evaluation of Amusia (MBEA) and two psychophysical pitch threshold tasks for identification of pitch direction in speech and music. Subsequently, ten of the twenty amusics undertook 10 sessions of adaptive-tracking pitch direction training, while the remaining 10 received no training. Post training, all amusics were retested on the pitch threshold tasks and on the three pitch-based MBEA subtests. Trained amusics demonstrated significantly improved thresholds for pitch direction identification in both speech and music, to the level of non-amusic control participants, although no significant difference was observed between trained and untrained amusics in the MBEA subtests. This provides the first clear positive evidence for improvement in pitch direction processing through auditory training in amusia. Further training studies are required to target different deficit areas in congenital amusia, so as to reveal which aspects of improvement will be most beneficial to the normal functioning of musical processing.
Perceptual Learning of Pitch Direction in Congenital Amusia: Evidence from Chinese Speakers
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Fang Liu, Cunmei Jiang, Tom Francart, Alice H. D. Chan, Patrick C. M. Wong; Perceptual Learning of Pitch Direction in Congenital Amusia: Evidence from Chinese Speakers. Music Perception 1 February 2017; 34 (3): 335–351. doi: https://doi.org/10.1525/mp.2017.34.3.335
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