Related Experiment Video
Updated: Apr 2, 2026
Electrically Evoked Stapedius Reflex Measurements in Cochlear Implantation and Its Application in the Postoperative Fitting Process
Published on: June 21, 2024
Utility of live aided Cortical Evoked Potential (CAEP) for optimizing programming of cochlear implants
Muthu Selvi Thangaraj1, Violet Priscilla2, Jeffi Johnson3
1Department of Audiology, Sri Ramachandra Institute of Higher Education and Research, (Demmed to be University) - Chennai (Tamil Nadu), India.
Purpose:
The present study assessed the utility of live-aided Cortical Auditory Evoked Potentials (CAEP) to optimize most comfortable level (M-levels) in children using cochlear implants.
Methods:
14 children using CI from both genders (5 females, 9 males) in the age range of 4 to 8 years participated in the study. A live CAEP based program was carried out by adjusting programming parameters and simultaneously recording CAEP in a free-field condition. The cochlear implant's speech processor was connected to the programming unit. The program was switched to live mode to receive an acoustic stimulus, and simultaneously, aided CAEP was measured. The M level of the program was adjusted until the P1 peak is elicited for /b//d//g/ stimuli at 40 dBnHL. This live CAEP based program was given to the same participants for them to use for two weeks. Behavioral threshold and speech perception was measured in CEAP program and compared with participants' everyday program.
Results:
Though sound field thresholds were better in live CAEP based programs, they were not statistically significant. And also, Speech perception scores were similar between every day and the live CAEP based program. Though M levels were higher in a live CAEP based program, they are not statistically significant from everyday programs.
Conclusion:
Live CAEP could be used successfully to optimize programming parameters. This would certainly reduce the number of trial runs and duration of programming.
