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Coherence analysis of scalp responses to amplitude-modulated tones.

Publication ,  Journal Article
Tucci, DL; Wilson, MJ; Dobie, RA
Published in: Acta Otolaryngol
1990

Magnitude squared coherence is a method of auditory evoked potential (AEP) frequency-domain analysis, measuring the degree to which the AEP is determined by the stimulus as a function of frequency. In 10 normal-hearing human subjects, scalp responses to an amplitude-modulated (AM) tone (500 Hz carrier modulated with a 40 Hz envelope) were recorded. Critical value criteria were utilized in the statistical analysis of coherence-intensity functions for determination of threshold responses. When compared with subjective determination of AEP threshold from time-domain waveforms, coherence analysis provided a significantly (p less than 0.001) more sensitive threshold measure. Coherence analysis provides information on the spectral content of the response, and allows for the objective determination of threshold which may potentially be utilized in a more expeditious threshold measurement scheme.

Duke Scholars

Published In

Acta Otolaryngol

DOI

ISSN

0001-6489

Publication Date

1990

Volume

109

Issue

3-4

Start / End Page

195 / 201

Location

England

Related Subject Headings

  • Scalp
  • Public Health
  • Otorhinolaryngology
  • Male
  • Humans
  • Female
  • Evoked Potentials, Auditory
  • Auditory Threshold
  • Adult
  • Acoustic Stimulation
 

Citation

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MLA
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Tucci, D. L., Wilson, M. J., & Dobie, R. A. (1990). Coherence analysis of scalp responses to amplitude-modulated tones. Acta Otolaryngol, 109(3–4), 195–201. https://doi.org/10.3109/00016489009107434
Tucci, D. L., M. J. Wilson, and R. A. Dobie. “Coherence analysis of scalp responses to amplitude-modulated tones.Acta Otolaryngol 109, no. 3–4 (1990): 195–201. https://doi.org/10.3109/00016489009107434.
Tucci DL, Wilson MJ, Dobie RA. Coherence analysis of scalp responses to amplitude-modulated tones. Acta Otolaryngol. 1990;109(3–4):195–201.
Tucci, D. L., et al. “Coherence analysis of scalp responses to amplitude-modulated tones.Acta Otolaryngol, vol. 109, no. 3–4, 1990, pp. 195–201. Pubmed, doi:10.3109/00016489009107434.
Tucci DL, Wilson MJ, Dobie RA. Coherence analysis of scalp responses to amplitude-modulated tones. Acta Otolaryngol. 1990;109(3–4):195–201.
Journal cover image

Published In

Acta Otolaryngol

DOI

ISSN

0001-6489

Publication Date

1990

Volume

109

Issue

3-4

Start / End Page

195 / 201

Location

England

Related Subject Headings

  • Scalp
  • Public Health
  • Otorhinolaryngology
  • Male
  • Humans
  • Female
  • Evoked Potentials, Auditory
  • Auditory Threshold
  • Adult
  • Acoustic Stimulation