Related Experiment Video
Updated: Apr 20, 2026
Neuro-rehabilitation Approach for Sudden Sensorineural Hearing Loss
Published on: January 25, 2016
P300 in individuals with sensorineural hearing loss
Ana Cláudia Mirandola Barbosa Reis1, Ana Claudia Figueiredo Frizzo2, Myriam de Lima Isaac1
1Faculdade de Medicina de Ribeirão Preto (FM-RP), Universidade de São Paulo (USP), São Paulo, SP, Brazil.
Introduction:
Behavioral and electrophysiological auditory evaluations contribute to the understanding of the auditory system and of the process of intervention.
Objective:
To study P300 in subjects with severe or profound sensorineural hearing loss.
Methods:
This was a descriptive cross-sectional prospective study. It included 29 individuals of both genders with severe or profound sensorineural hearing loss without other type of disorders, aged 11 to 42 years; all were assessed by behavioral audiological evaluation and auditory evoked potentials.
Results:
A recording of the P3 wave was obtained in 17 individuals, with a mean latency of 326.97ms and mean amplitude of 3.76V. There were significant differences in latency in relation to age and in amplitude according to degree of hearing loss. There was a statistically significant association of the P300 results with the degrees of hearing loss (p=0.04), with the predominant auditory communication channels (p<0.0001), and with time of hearing loss.
Conclusions:
P300 can be recorded in individuals with severe and profound congenital sensorineural hearing loss; it may contribute to the understanding of cortical development and is a good predictor of the early intervention outcome.
