Test-retest reliability of cortical evoked potentials using naturally produced speech sounds.

Full Abstract

OBJECTIVE:
To determine if naturally produced speech stimuli evoke distinct neural response patterns that can be reliably recorded in individuals.

DESIGN:
Auditory cortical evoked potentials were obtained from seven normal-hearing young adults in response to four naturally produced speech tokens (/bi/, /pi/, /[U0283]i/, and /si/). Stimuli were tokens from the standardized UCLA version of the Nonsense Syllable Test (NST) ( Dubno & Schaefer, 1992). Using a repeated measures design, subjects were tested and then retested within an 8-day period.

RESULTS:
Auditory cortical evoked potentials elicited by naturally produced speech sounds were reliably recorded in individuals. Also, naturally produced speech tokens, representing different acoustic cues, evoked distinct neural response patterns.

CONCLUSIONS:
1) Cortical evoked potentials elicited by naturally produced speech sounds can be reliably recorded in individuals. 2) Naturally produced speech tokens, representing different acoustic cues, evoke distinct neural response patterns. 3) Given the reliability of the response, this work has potential application to the study of neural processing of speech in individuals with communication disorders as well as changes over time after various types of auditory rehabilitation.

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Author information

Author/s: Tremblay, K L (KL); Friesen, L (L); Martin, B A (BA); Wright, R (R);

Affiliation: Department of Speech and Hearing Sciences, University of Washington, 1417 NE 42nd St., Seattle, WA 98105, USA. tremblay(-atsign-)u.washington.edu

Grants: R03 AG18552-01 (Agency:NIA NIH HHS) ; T32 DC00033 (Agency:NIDCD NIH HHS)

Journal and publication information

Publication Type: Journal Article; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, P.H.S.

Journal: Ear and hearing (Ear Hear), published in United States. (Language: eng)

Reference: 2003-Jun; vol 24 (issue 3) : pp 225-32

Dates: Created 2003/06/11; Completed 2003/10/08; Revised 2007/11/14;

PMID: 12799544, status: MEDLINE (last retrieval date: 12/26/2008)

Sourced from the National Library of Medicine. Abstract text and other information may be subject to copyright.

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MeSH headings (categories)

This article was linked to the MESH Headings shown below.

Acoustic Stimulation
Adult
Evoked Potentials, Auditory - physiology
Female
Humans

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