Document Detail


Dual-pitch processing mechanisms in primate auditory cortex.
MedLine Citation:
PMID:  23152599     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Pitch, our perception of how high or low a sound is on a musical scale, is a fundamental perceptual attribute of sounds and is important for both music and speech. After more than a century of research, the exact mechanisms used by the auditory system to extract pitch are still being debated. Theoretically, pitch can be computed using either spectral or temporal acoustic features of a sound. We have investigated how cues derived from the temporal envelope and spectrum of an acoustic signal are used for pitch extraction in the common marmoset (Callithrix jacchus), a vocal primate species, by measuring pitch discrimination behaviorally and examining pitch-selective neuronal responses in auditory cortex. We find that pitch is extracted by marmosets using temporal envelope cues for lower pitch sounds composed of higher-order harmonics, whereas spectral cues are used for higher pitch sounds with lower-order harmonics. Our data support dual-pitch processing mechanisms, originally proposed by psychophysicists based on human studies, whereby pitch is extracted using a combination of temporal envelope and spectral cues.
Authors:
Daniel Bendor; Michael S Osmanski; Xiaoqin Wang
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Publication Detail:
Type:  Journal Article; Research Support, N.I.H., Extramural; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  The Journal of neuroscience : the official journal of the Society for Neuroscience     Volume:  32     ISSN:  1529-2401     ISO Abbreviation:  J. Neurosci.     Publication Date:  2012 Nov 
Date Detail:
Created Date:  2012-11-15     Completed Date:  2013-01-21     Revised Date:  2013-11-05    
Medline Journal Info:
Nlm Unique ID:  8102140     Medline TA:  J Neurosci     Country:  United States    
Other Details:
Languages:  eng     Pagination:  16149-61     Citation Subset:  IM    
Affiliation:
Laboratory of Auditory Neurophysiology, Department of Biomedical Engineering, Johns Hopkins University School of Medicine, Baltimore, Maryland 21025, USA.
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MeSH Terms
Descriptor/Qualifier:
Acoustic Stimulation
Animals
Auditory Cortex / cytology,  physiology*
Callithrix / physiology*
Conditioning, Operant / physiology
Cues
Female
Male
Neurons / physiology
Pitch Perception / physiology*
Grant Support
ID/Acronym/Agency:
DC 03180/DC/NIDCD NIH HHS; F31 DC 006528/DC/NIDCD NIH HHS; F31 DC006528/DC/NIDCD NIH HHS; K99-DC012321-01/DC/NIDCD NIH HHS; R01 DC003180/DC/NIDCD NIH HHS; T32 DC000023/DC/NIDCD NIH HHS
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