The role of peripheral resolvability in pitch-sequence processing.

Marion Cousineau, Laurent Demany, Daniel Pressnitzer
The Journal of the Acoustical Society of America. 2010-11-01; 128(5): EL236-EL241
DOI: 10.1121/1.3499701

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1. J Acoust Soc Am. 2010 Nov;128(5):EL236-41. doi: 10.1121/1.3499701.

The role of peripheral resolvability in pitch-sequence processing.

Cousineau M(1), Demany L, Pressnitzer D.

Author information:
(1)Laboratoire Psychologie de la Perception, CNRS and Université Paris Descartes,
45 rue des Saints-Pères, F-75006 Paris, France.

The authors previously reported that same/different judgments on pitch sequences
were more accurate for tones with resolved (low-rank) harmonics compared to
unresolved (high-rank) harmonics, even when discriminability between tones was
equated [Cousineau et al. (2009). J. Acoust. Soc. Am. 126, 3179-3187]. Here,
peripheral resolvability, defined by the number of harmonics per cochlear filter,
was contrasted with harmonic number. Tones were presented either diotically or
dichotically. In the latter case, even and odd harmonics were presented to
different ears, thus halving the number of harmonics per cochlear filter.
Performance was better for dichotic than for diotic presentations. This indicates
that peripheral resolvability is necessary and sufficient for efficient
pitch-sequence processing.

DOI: 10.1121/1.3499701
PMID: 21110532 [Indexed for MEDLINE]


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