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PLoS One. 2014 Jan 21;9(1):e87065. doi: 10.1371/journal.pone.0087065. eCollection 2014.

Pitch and timbre interfere when both are parametrically varied.

Author information

1
Cognitive Neuroscience Sector, SISSA, Trieste, Italy ; Center for Cognitive Neuroscience, Duke University, Durham, North Carolina, USA.
2
Behavioral Neurosciences Program, McGill University, Montreal, QC, Canada.

Abstract

Pitch and timbre perception are both based on the frequency content of sound, but previous perceptual experiments have disagreed about whether these two dimensions are processed independently from each other. We tested the interaction of pitch and timbre variations using sequential comparisons of sound pairs. Listeners judged whether two sequential sounds were identical along the dimension of either pitch or timbre, while the perceptual distances along both dimensions were parametrically manipulated. Pitch and timbre variations perceptually interfered with each other and the degree of interference was modulated by the magnitude of changes along the un-attended dimension. These results show that pitch and timbre are not orthogonal to each other when both are assessed with parametrically controlled variations.

PMID:
24466328
PMCID:
PMC3897753
DOI:
10.1371/journal.pone.0087065
[Indexed for MEDLINE]
Free PMC Article

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