Document Detail

The effect of flanking bands on sensitivity to interaural time differences.
MedLine Citation:
PMID:  19354649     Owner:  NLM     Status:  In-Data-Review    
We are examining the potential for cochlear implant patients who retain some low-frequency residual hearing in both ears to benefit from interaural time differences (ITDs) to improve speech reception. Given the likelihood of asymmetrical loss in the low-frequency region, the relationship between spectral overlap and ITD sensitivity is of interest. We previously measured ITD sensitivity using narrow-band noise carriers, while varying the amount of spectral overlap between the ears. We found very good sensitivity when the bands completely overlapped, but for most listeners, sensitivity declined as the center frequency of one band was moved away from the other. When, for example, 23-octave bands were offset by 13 octave and presented to each ear, ITD sensitivity declined. This condition consists of three bands, a 13-octave center band that is spectrally similar across ears, and two 13-octave flanking bands, each of which is present in one or the other ear. Because the center band alone produces good ITD sensitivity, we hypothesized that moving the flankers away in frequency from the center band would result in improved sensitivity. However, the presence of the spectrally displaced bands led to poorer ITD sensitivity. [Work supported by grants from NIDCD.].
Christopher A Brown; William A Yost
Related Documents :
16712229 - Quantum lithography with classical light.
17460109 - Rapid and precise control of sniffing during olfactory discrimination in rats.
2229669 - Uncertainty about the correlation among temporal envelopes in two comodulation tasks.
15139639 - Spectral integration of synchronous and asynchronous cues to consonant identification.
21356599 - Psb30 is a photosystem ii reaction center subunit and is required for optimal growth in...
22841749 - Effect of led light spectra on starvation-induced oxidative stress in the cinnamon clow...
976449 - Rudiments of an ability for time measurement in the cavernicolous fish anoptichthys jor...
12009119 - Short term and long term effects of enhanced auditory feedback on typing force, emg, an...
21806189 - Wideband phase-locked loop circuit with real-time phase correction for frequency modula...
Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  The Journal of the Acoustical Society of America     Volume:  125     ISSN:  1520-8524     ISO Abbreviation:  J. Acoust. Soc. Am.     Publication Date:  2009 Apr 
Date Detail:
Created Date:  2009-04-09     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:  2522     Citation Subset:  IM    
Dept. of Speech and Hearing Sci. Arizona State Univ., P.O. Box 870102, Tempe, AZ 85287-0102.
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

Previous Document:  Does random temporal jitter reduce onset dominance in temporal weighting functions for high-rate cli...
Next Document:  The influence of masker fringe on sound localization in noise.