Abstract:
:It is widely appreciated that the key predictor of the pitch of a sound is its periodicity. Neural structures which support pitch perception must therefore be able to reflect the repetition rate of a sound, but this alone is not sufficient. Since pitch is a psychoacoustic property, a putative cortical code for pitch must also be able to account for the relationship between the amount to which a sound is periodic (i.e. its temporal regularity) and the perceived pitch salience, as well as limits in our ability to detect pitch changes or to discriminate rising from falling pitch. Pitch codes must also be robust in the presence of nuisance variables such as loudness or timbre. Here, we review a large body of work on the cortical basis of pitch perception, which illustrates that the distribution of cortical processes that give rise to pitch perception is likely to depend on both the acoustical features and functional relevance of a sound. While previous studies have greatly advanced our understanding, we highlight several open questions regarding the neural basis of pitch perception. These questions can begin to be addressed through a cooperation of investigative efforts across species and experimental techniques, and, critically, by examining the responses of single neurons in behaving animals.
journal_name
Hear Resjournal_title
Hearing researchauthors
Walker KM,Bizley JK,King AJ,Schnupp JWdoi
10.1016/j.heares.2010.04.015subject
Has Abstractpub_date
2011-01-01 00:00:00pages
74-87issue
1-2eissn
0378-5955issn
1878-5891pii
S0378-5955(10)00242-Xjournal_volume
271pub_type
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