Objective versus human observer detection of 40-Hz auditory-evoked potentials

Robert A. Dobiea, Michael J. Wilson

Research output: Contribution to journalArticle

9 Scopus citations

Abstract

Magnitude-squared coherence (MSC) was used to detect 40-Hz auditory-evoked potentials (AEPs) in a two-alternative forced-choice experiment. MSC performance was found to be better than that of ten human observers. Experienced observers did not perform better than naive observers. In a “yes-no” experiment, observers demonstrated large differences in criterion, with false-positive rates of 2%-20%. Observers also performed better when AEPs were presented in a 50-ms window (two response cycles) than when presented in a 205-ms window (eight response cycles), although total test time was the same; MSC performed equally well in both cases. MSC provides a useful and objective adjunct to visual detection of 40-Hz AEPs.

Original languageEnglish (US)
Pages (from-to)3042-3050
Number of pages9
JournalJournal of the Acoustical Society of America
Volume97
Issue number5
DOIs
StatePublished - May 1995

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ASJC Scopus subject areas

  • Arts and Humanities (miscellaneous)
  • Acoustics and Ultrasonics

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