Computerized algorithms to score P1 wave characteristics in the cortical auditory evoked potentials of children with cochlear implants

James M Wood, University of Texas at El Paso

Abstract

The purpose of this project was to develop a computerized algorithm to score the latency and wave width of the P1 component in the cortical auditory evoked potentials (CAEPs) of normal-hearing children and children with cochlear implants. The primary analytical tool used in the project was local polynomial smoothing, as implemented in the KernSmooth package for S-Plus software (Wand & Jones, 1995). The thesis provides background on cochlear implantation, CAEPs, and local polynomial smoothing, then describes development of an S-Plus program to score P1 latency and wave width. The P1 latency scores assigned by the program were found to correlate highly (ICCs > .90) with scores assigned by expert audiologists. Research results based on computer-assigned scores were similar to results based on expert-assigned scores (Sharma et al., 2002a, 2002b, 2005). Additional analyses are reported concerning the interrelationship of P1 latencies, P1 wave widths, and children's ages. ^ Keywords. local polynomial smoothing, local cubic smoothing, kernel smoothing, corticla auditory evoked potential, CAEP, P1, P1 latency, wave width, cochlear implant^

Subject Area

Health Sciences, Audiology|Statistics|Psychology, Physiological

Recommended Citation

Wood, James M, "Computerized algorithms to score P1 wave characteristics in the cortical auditory evoked potentials of children with cochlear implants" (2007). ETD Collection for University of Texas, El Paso. AAI1449754.
http://digitalcommons.utep.edu/dissertations/AAI1449754

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