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Process timing and its relation to the coding of tonal harmony

Aksentijevic, A. and Barber, Paul J. and Elliott, M.A. (2011) Process timing and its relation to the coding of tonal harmony. Journal of Experimental Psychology: Human Perception and Performance 37 (5), pp. 1628-1642. ISSN 0096-1523.

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Advances in auditory research suggest that gamma-band synchronization of frequency-specific cortical loci could be responsible for the integration of pure tones (harmonics) into harmonic complex tones. Thus far, evidence for such a mechanism has been revealed in neurophysiological studies, with little corroborative psychophysical evidence. In six experiments, we observed a rate- and time-specific response-time advantage for a sequence of target pips when the defining frequency of the target was a fractional multiple of a priming frequency. The effect was only observed when the prime and target sequences were presented at 33 pips per second and when the interstimulus interval was approximately 100 and 250 ms. This evidence implicates oscillatory gamma-band activity in the representation of harmonic complex tones and suggests that synchronization with precise temporal characteristics is important for disambiguating related harmonic templates. An outline of a model is presented, which accounts for these findings in terms of fast resynchronization of relevant neuronal assemblies.

Item Type: Article
Keyword(s) / Subject(s): gamma-band oscillations, harmonic templates
School or Research Centre: Birkbeck Schools and Research Centres > School of Science > Psychological Sciences
Depositing User: Administrator
Date Deposited: 10 Oct 2011 08:17
Last Modified: 17 Apr 2013 12:21

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