Selective Subcortical Enhancement of Musical Intervals in Musicians

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By measuring the auditory brainstem response to two musical intervals, the major sixth (E3 and G2) and the minor seventh (E3 and F#2), we found that musicians have a more specialized sensory system for processing behaviorally relevant aspects of sound. Musicians had heightened responses to the harmonics of the upper tone (E), as well as certain combination tones (sum tones) generated by nonlinear processing in the auditory system. In music, the upper note is typically carried by the upper voice, and the enhancement of the upper tone likely reflects musicians' extensive experience attending to the upper voice. Neural phase locking to the temporal periodicity of the amplitude-modulated envelope, which underlies the perception of musical harmony, was also more precise in musicians than nonmusicians. Neural enhancements were strongly correlated with years of musical training, and our findings, therefore, underscore the role that long-term experience with music plays in shaping auditory sensory encoding.
Publisher
SOC NEUROSCIENCE
Issue Date
2009-05
Language
English
Article Type
Article
Keywords

FREQUENCY-FOLLOWING RESPONSES; AUDITORY-EVOKED-POTENTIALS; HUMAN BRAIN-STEM; CORTICOFUGAL MODULATION; DISTORTION-PRODUCT; COMPLEX TONES; INFERIOR COLLICULUS; CORTICAL PLASTICITY; BASILAR-MEMBRANE; CORTEX

Citation

JOURNAL OF NEUROSCIENCE, v.29, no.18, pp.5832 - 5840

ISSN
0270-6474
DOI
10.1523/JNEUROSCI.6133-08.2009
URI
http://hdl.handle.net/10203/208918
Appears in Collection
HSS-Journal Papers(저널논문)
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