Growth of suppression using distortion-product otoacoustic emission measurements in hearing-impaired humans

Cori Birkholz, Alyson Gruhlke, Stephen T Neely, Judy Kopun, Hongyang Tan, Walt Jesteadt, Kendra K Schmid, Michael P Gorga

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

Growth of distortion-product otoacoustic emission suppression was measured in 65 subjects with mild-to-moderate sensorineural hearing loss (HI). Measurements were made at four probe frequencies (f2) and up to five L2 levels. Eleven suppressor frequencies (f3) were used for each f2, L2 combination. These data were compared to data from normal-hearing (NH) subjects (Gorga, 2011a). In both NH and HI subjects, growth of suppression depended on the relation between f2 and f3, such that the slope was close to one when f3 ≈ f2, steeper than one when f3 f2, and shallower than one when f3 > f2. Differences in growth of suppression between NH and HI subjects were not observed for fixed f 2, L2 combinations, however large differences were observed in suppressor threshold when compared at the same probe sensation level (dB SL). Smaller group differences were observed when compared at the same probe sound-pressure level (dB SPL). Therefore, the extent of these differences depended on how probe level (L2) was specified. When the results from NH and HI subjects are compared with each other and with psychophysical studies of masking, differences are observed that have implications for the remediation of mild-to-moderate hearing loss.

Original languageEnglish (US)
Pages (from-to)3305-3318
Number of pages14
JournalJournal of the Acoustical Society of America
Volume132
Issue number5
DOIs
StatePublished - Nov 1 2012

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auditory defects
hearing
retarding
products
suppressors
probes
sound pressure
masking
Suppression
Hearing Impairment
slopes
thresholds
Hearing

ASJC Scopus subject areas

  • Arts and Humanities (miscellaneous)
  • Acoustics and Ultrasonics

Cite this

Growth of suppression using distortion-product otoacoustic emission measurements in hearing-impaired humans. / Birkholz, Cori; Gruhlke, Alyson; Neely, Stephen T; Kopun, Judy; Tan, Hongyang; Jesteadt, Walt; Schmid, Kendra K; Gorga, Michael P.

In: Journal of the Acoustical Society of America, Vol. 132, No. 5, 01.11.2012, p. 3305-3318.

Research output: Contribution to journalArticle

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