This Article  • References  • Full text PDF  • Reply to article  • Send to a friend  • Save in My Folder  • Save to citation manager  • Permissions  Citing Articles  • Citing articles on HighWire  • Contact me when this article is cited  Related Content  • Similar articles in this journal  Social Bookmarking   What's this?

Alfred C. Coats, MD

Arch Otolaryngol Head Neck Surg. 1986;112(7):759-768.

Abstract
• With a "plastic leaf" electrode, cochlear summating potential (SP) and auditory nerve action potential (AP) responses to rectangular-pulse clicks were recorded from the ear canal skin surface of 96 normal-hearing ears of 48 subjects. The main goals of this investigation were to develop a more precise characterization of the relationship between SP and AP amplitudes across normal ears and to determine the confidence limits of this relationship so that a more accurate "normal limit" could be established for clinical testing. The results suggest that the across-subjects SP-AP amplitude relationship is linear. Also, SP scatter increases as AP amplitude increases, but the scatter is equalized by log transforming the data. The distance of the SP from the log-transformed SP-AP estimating line in SE ("AP-normalized SP amplitude") was found to be superior to the SP/AP amplitude ratio as a method of adjusting SP to AP amplitude, because the SP/AP ratio varied significantly with AP amplitude both across subjects and with different ear canal electrode positions.

(Arch Otolaryngol Head Neck Surg 1986;112:759-768)

Author Affiliations
From the Departments of Otorhinolaryngology and Communicative Sciences and of Neurology, Baylor College of Medicine, Houston.

Footnotes
Accepted for publication Dec 2, 1985.

Reprint requests to Institute of Otorhinolaryngology and Communicative Disorders, Neurosensory Center of Houston, 6501 Fannin St, Houston, TX 77030 (Dr Coats).

CiteULike    Connotea    Del.icio.us    Digg    Reddit    Technorati    Twitter     What's this?

THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES

Tympanic Electrocochleography for Diagnosis of Meniere's Disease
Margolis et al.
Arch Otolaryngol Head Neck Surg 1995;121:44-55.
ABSTRACT  

Electrocochleographic Monitoring in Endolymphatic Sac Surgery for Meniere's Disease
Huang et al.
Arch Otolaryngol Head Neck Surg 1994;120:552-559.
ABSTRACT