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Concurrent sound segregation is enhanced in musicians.
J Cogn Neurosci. 2009 Aug; 21(8):1488-98.JC

Abstract

The ability to segregate simultaneously occurring sounds is fundamental to auditory perception. Many studies have shown that musicians have enhanced auditory perceptual abilities; however, the impact of musical expertise on segregating concurrently occurring sounds is unknown. Therefore, we examined whether long-term musical training can improve listeners' ability to segregate sounds that occur simultaneously. Participants were presented with complex sounds that had either all harmonics in tune or the second harmonic mistuned by 1%, 2%, 4%, 8%, or 16% of its original value. The likelihood of hearing two sounds simultaneously increased with mistuning, and this effect was greater in musicians than nonmusicians. The segregation of the mistuned harmonic from the harmonic series was paralleled by an object-related negativity that was larger and peaked earlier in musicians. It also coincided with a late positive wave referred to as the P400 whose amplitude was larger in musicians than in nonmusicians. The behavioral and electrophysiological effects of musical expertise were specific to processing the mistuned harmonic as the N1, the N1c, and the P2 waves elicited by the tuned stimuli were comparable in both musicians and nonmusicians. These results demonstrate that listeners' ability to segregate concurrent sounds based on harmonicity is modulated by experience and provides a basis for further studies assessing the potential rehabilitative effects of musical training on solving complex scene analysis problems illustrated by the cocktail party example.

Authors+Show Affiliations

University of Toronto, Ontario, Canada.No affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

18823227

Citation

Zendel, Benjamin Rich, and Claude Alain. "Concurrent Sound Segregation Is Enhanced in Musicians." Journal of Cognitive Neuroscience, vol. 21, no. 8, 2009, pp. 1488-98.
Zendel BR, Alain C. Concurrent sound segregation is enhanced in musicians. J Cogn Neurosci. 2009;21(8):1488-98.
Zendel, B. R., & Alain, C. (2009). Concurrent sound segregation is enhanced in musicians. Journal of Cognitive Neuroscience, 21(8), 1488-98. https://doi.org/10.1162/jocn.2009.21140
Zendel BR, Alain C. Concurrent Sound Segregation Is Enhanced in Musicians. J Cogn Neurosci. 2009;21(8):1488-98. PubMed PMID: 18823227.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Concurrent sound segregation is enhanced in musicians. AU - Zendel,Benjamin Rich, AU - Alain,Claude, PY - 2008/10/1/pubmed PY - 2009/9/24/medline PY - 2008/10/1/entrez SP - 1488 EP - 98 JF - Journal of cognitive neuroscience JO - J Cogn Neurosci VL - 21 IS - 8 N2 - The ability to segregate simultaneously occurring sounds is fundamental to auditory perception. Many studies have shown that musicians have enhanced auditory perceptual abilities; however, the impact of musical expertise on segregating concurrently occurring sounds is unknown. Therefore, we examined whether long-term musical training can improve listeners' ability to segregate sounds that occur simultaneously. Participants were presented with complex sounds that had either all harmonics in tune or the second harmonic mistuned by 1%, 2%, 4%, 8%, or 16% of its original value. The likelihood of hearing two sounds simultaneously increased with mistuning, and this effect was greater in musicians than nonmusicians. The segregation of the mistuned harmonic from the harmonic series was paralleled by an object-related negativity that was larger and peaked earlier in musicians. It also coincided with a late positive wave referred to as the P400 whose amplitude was larger in musicians than in nonmusicians. The behavioral and electrophysiological effects of musical expertise were specific to processing the mistuned harmonic as the N1, the N1c, and the P2 waves elicited by the tuned stimuli were comparable in both musicians and nonmusicians. These results demonstrate that listeners' ability to segregate concurrent sounds based on harmonicity is modulated by experience and provides a basis for further studies assessing the potential rehabilitative effects of musical training on solving complex scene analysis problems illustrated by the cocktail party example. SN - 0898-929X UR - https://www.unboundmedicine.com/medline/citation/18823227/Concurrent_sound_segregation_is_enhanced_in_musicians_ L2 - https://www.mitpressjournals.org/doi/10.1162/jocn.2009.21140?url_ver=Z39.88-2003&rfr_id=ori:rid:crossref.org&rfr_dat=cr_pub=pubmed DB - PRIME DP - Unbound Medicine ER -