Does static ear canal pressure influence pure-tone pitch perception?


Rowan, Daniel, Kapadia, Sarosh and Lutman, Mark (2004) Does static ear canal pressure influence pure-tone pitch perception? Acta Oto-Laryngologica, 124, (3), 286-289. (doi:10.1080/00016480310000511).

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Description/Abstract

Objective - That static ear canal air pressure (ECP) influences the frequency of spontaneous otoacoustic emissions (SOAEs) suggests that it may influence intracochlear, in addition to middle ear, processes. A previous study suggested that ECP influences pure tone pitch perception at 1,000 Hz, which was interpreted as indicating an effect on the cochlear place-frequency map. The present study extended investigations of this effect to 500 and 4,000 Hz.
Material and Methods - Nine normal-hearing listeners performed interaural pitch matching with monaural ECPs of 0 and -300 daPa.

Results - Some indications of a small downward pitch shift (mean 0.2%) at 500 Hz were observed, which were marginally statistically significant at the 5% level. No pitch shifts were observed at 4,000 Hz.

Conclusions - ECP does not influence pitch to the extent suggested previously or by SOAE frequency shifts. No evidence was found to support the notion that ECP influences the place-frequency map.

Item Type: Article
ISSNs: 0001-6489 (print)
Related URLs:
Keywords: pitch perception, spontaneous otoacoustic emissions
Subjects: R Medicine > RF Otorhinolaryngology
Q Science > QC Physics
Divisions: University Structure - Pre August 2011 > School of Medicine
University Structure - Pre August 2011 > Institute of Sound and Vibration Research > Human Sciences
ePrint ID: 10693
Date Deposited: 08 Feb 2006
Last Modified: 27 Mar 2014 18:02
URI: http://eprints.soton.ac.uk/id/eprint/10693

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