Cortical Auditory Evoked Responses and Behavioural Outcomes in Hearing Aid Users

Abstract

The behavioural outcome measure and cortical potentials can be used for evaluating the benefits from hearing aids. These can provide reliable information, especially in the children. Therefore, the present study aimed at investigating the relationship between behavioural outcome with hearing aid and the aided Late Latency Response. The data were collected from two groups of participants, children and adults. The subjective questionnaire, SIS in quiet and Articulation Index were the behavioural measures used. The objective measures included P1 and N1 latencies, P1-N1 amplitude and P1-N1 slope of aided LLR. The results revealed that there was a significant moderate negative correlation between articulation index (AI) and latency of P1 for /g/ stimulus. Further, there was a significant correlation between speech identification score (SIS) and latency of N1 for /t/ stimulus. There was no correlation for other parameters studied.