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Temporal pattern discrimination and speech recognition under electrical stimulation.

Publication ,  Journal Article
Collins, LM; Wakefield, GH; Feinman, GR
Published in: The Journal of the Acoustical Society of America
November 1994

Discrimination of temporal patterns has been suggested as a relevant process in speech recognition by subjects with normal hearing [Sorkin, J. Acoust. Soc. Am. 87, 1695-1701 (1990)]. This paper investigates whether performance of Nucleus multichannel cochlear implant subjects on a temporal pattern discrimination task is an efficient and valid psychophysical measure of speech recognition ability. Stimuli consisted of temporal sequences defined by twelve 35-ms tones and eleven randomly generated temporal gaps separating the tones. A fixed-level same/different paradigm was used to measure the discriminability of these sequences as a function of their average correlation across a block of trials. On each trial, the "standard" sequence was generated randomly by drawing gap durations from a Gaussian distribution. The gaps of the comparison sequence were generated in a similar fashion with a specified average correlation with the gaps of the first sequence. Performance of implanted and normal hearing subjects decreased monotonically with increasing average sequence correlation. However, performance across implanted subjects ranged from that observed for acoustically stimulated subjects with audiometrically normal hearing to levels near chance. Comparing these data with measures of speech recognition in the same subjects, we have found that performance on standard speech recognition tests correlates with ability to discriminate among such random temporal patterns.

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Published In

The Journal of the Acoustical Society of America

DOI

EISSN

1520-8524

ISSN

0001-4966

Publication Date

November 1994

Volume

96

Issue

5 Pt 1

Start / End Page

2731 / 2737

Related Subject Headings

  • Time Factors
  • Speech Perception
  • Middle Aged
  • Humans
  • Electric Stimulation
  • Deafness
  • Cochlear Implants
  • Aged
  • Adult
  • Acoustics
 

Citation

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Collins, L. M., Wakefield, G. H., & Feinman, G. R. (1994). Temporal pattern discrimination and speech recognition under electrical stimulation. The Journal of the Acoustical Society of America, 96(5 Pt 1), 2731–2737. https://doi.org/10.1121/1.411279
Collins, L. M., G. H. Wakefield, and G. R. Feinman. “Temporal pattern discrimination and speech recognition under electrical stimulation.The Journal of the Acoustical Society of America 96, no. 5 Pt 1 (November 1994): 2731–37. https://doi.org/10.1121/1.411279.
Collins LM, Wakefield GH, Feinman GR. Temporal pattern discrimination and speech recognition under electrical stimulation. The Journal of the Acoustical Society of America. 1994 Nov;96(5 Pt 1):2731–7.
Collins, L. M., et al. “Temporal pattern discrimination and speech recognition under electrical stimulation.The Journal of the Acoustical Society of America, vol. 96, no. 5 Pt 1, Nov. 1994, pp. 2731–37. Epmc, doi:10.1121/1.411279.
Collins LM, Wakefield GH, Feinman GR. Temporal pattern discrimination and speech recognition under electrical stimulation. The Journal of the Acoustical Society of America. 1994 Nov;96(5 Pt 1):2731–2737.

Published In

The Journal of the Acoustical Society of America

DOI

EISSN

1520-8524

ISSN

0001-4966

Publication Date

November 1994

Volume

96

Issue

5 Pt 1

Start / End Page

2731 / 2737

Related Subject Headings

  • Time Factors
  • Speech Perception
  • Middle Aged
  • Humans
  • Electric Stimulation
  • Deafness
  • Cochlear Implants
  • Aged
  • Adult
  • Acoustics