| Neural correlates of sensory consonance and dissonance in primate primary auditory cortex. | |
| | |
MedLine Citation:
|
PMID: 20330857 Owner: NLM Status: In-Data-Review |
Abstract/OtherAbstract:
|
The perception of consonance and dissonance of isolated chords (sensory consonancedissonance) is fundamental to music appreciation. Consonant chords are composed of tones related to each other by simple frequency ratios (e.g., perfect fifth 3:2), whereas dissonant chords are composed of tones related to each other by complex ratios (e.g., minor second 256:243). Dissonance is thought to be due to the perception of beats (modulation frequencies < 20 Hz) or roughness (modulation frequencies from 20-250 Hz), which occur when two or more components of a complex sound are separated from one another in frequency by less than the width of an auditory filter (i.e., critical bandwidth). These unresolved frequency components interact in the auditory periphery to produce amplitude-modulated (AM) fluctuations in the composite waveform envelope. We demonstrate that the magnitude of neuronal phase-locking to these AM fluctuations in primary auditory cortex of awake monkeys correlates with the perceived consonancedissonance of musical chords and parallels human perception of roughness. This correlation is displayed by population activity, as measured by auditory evoked potentials (AEPs), current source density, and multiunit activity. We further demonstrate that phase-locking of AEPs in Heschl's gyrus of humans is similar to that seen in the monkey. |
| | |
Authors:
|
Mitchell Steinschneider; Yonatan I Fishman |
Related Documents
:
|
8847667 - Frequency tuning curves of the dolphin's hearing: envelope-following response study. 1646867 - Modulation of synaptic transmission at ia-afferent fiber connections on motoneurons dur... 9301057 - The effects of frequency region and bandwidth on the temporal modulation transfer funct... 2760607 - Sensitivity of ocellar interneurons of the honeybee to constant and temporally modulate... 6746237 - Rate-dependent inhibition of pattern-evoked retinal responses in the pigeon. 6619427 - Representation of stop consonants in the discharge patterns of auditory-nerve fibers. |
Publication Detail:
|
Type: Journal Article |
Journal Detail:
|
Title: The Journal of the Acoustical Society of America Volume: 127 ISSN: 1520-8524 ISO Abbreviation: J. Acoust. Soc. Am. Publication Date: 2010 Mar |
Date Detail:
|
Created Date: 2010-03-24 Completed Date: - Revised Date: - |
Medline Journal Info:
|
Nlm Unique ID: 7503051 Medline TA: J Acoust Soc Am Country: United States |
Other Details:
|
Languages: eng Pagination: 1951 Citation Subset: IM |
Affiliation:
|
Dept. of Neurosci., Albert Einstein Coll. of Med., 1300 Morris Park Ave., Bronx, NY 10461, mitchell.steinschneider@einstein.yu.eduAlbert Einstein Coll. of Med., Bronx, NY 10461. |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
|
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: A biomimetic multi-resolution spectrotemporal model for musical timbre recognition.
Next Document: A novel physiological mechanism for pitch encoding in monkey primary auditory cortex.