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 language | English (US) |
---|---|
Pages (from-to) | 3042-3050 |
Number of pages | 9 |
Journal | Journal of the Acoustical Society of America |
Volume | 97 |
Issue number | 5 |
DOIs | |
State | Published - May 1995 |
ASJC Scopus subject areas
- Arts and Humanities (miscellaneous)
- Acoustics and Ultrasonics