P300 in individuals with sensorineural hearing loss

Behavioral and electrophysiological auditory evaluations contribute to the understanding of the auditory system and of the process of intervention. To study P300 in subjects with severe or profound sensorineural hearing loss. This was a descriptive cross-sectional prospective study. It included 29 i...

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Bibliographic Details
Published in:Brazilian journal of otorhinolaryngology 2015-03, Vol.81 (2), p.126-132
Main Authors: Reis, Ana Cláudia Mirandola Barbosa, Frizzo, Ana Claudia Figueiredo, Isaac, Myriam de Lima, Garcia, Cristiane Fregonesi Dutra, Funayama, Carolina Araújo Rodrigues, Iório, Maria Cecília Martinelli
Format: Article
Language:English
Subjects:
Adolescent
Adult
Auditory cortex
Auditory evoked potentials
Brazil
Cross-Sectional Studies
Córtex auditivo
Electrophysiology
Eletrofisiologia
Event-related potentials, P300
Event-Related Potentials, P300 - physiology
Evoked Potentials, Auditory, Brain Stem
Female
Hearing loss
Hearing Loss, Sensorineural - congenital
Hearing Loss, Sensorineural - physiopathology
Humans
Male
Middle Aged
Original
OTORHINOLARYNGOLOGY
Perda auditiva
Potenciais evocados auditivos
Potencial evocado P300
Severity of Illness Index
Speech Reception Threshold Test
Young Adult
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Summary:Behavioral and electrophysiological auditory evaluations contribute to the understanding of the auditory system and of the process of intervention. To study P300 in subjects with severe or profound sensorineural hearing loss. 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. 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
ISSN:1808-8694
1808-8686
1808-8686
DOI:10.1016/j.bjorl.2014.10.001