Electrophysiological and behavioural processing of complex acoustic cues
Autor: | Filip Marchman Rønne, Suzanne C. Purdy, David Welch, Niels Henrik Pontoppidan, Abin Kuruvilla Mathew |
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Rok vydání: | 2016 |
Předmět: |
Adult
Male medicine.medical_specialty Hearing loss Hearing Loss Sensorineural Stimulus (physiology) Audiology Pitch Discrimination Young Adult 03 medical and health sciences 0302 clinical medicine Salience (neuroscience) Physiology (medical) otorhinolaryngologic diseases medicine Humans Pitch Perception 030223 otorhinolaryngology Auditory Threshold Middle Aged medicine.disease Sensory Systems Electrophysiology Acoustic Stimulation Neurology Neural processing Evoked Potentials Auditory Female Sensorineural hearing loss sense organs Neurology (clinical) Analysis of variance Cues medicine.symptom Psychology psychological phenomena and processes 030217 neurology & neurosurgery |
Zdroj: | Clinical Neurophysiology. 127:779-789 |
ISSN: | 1388-2457 |
DOI: | 10.1016/j.clinph.2015.04.002 |
Popis: | Objectives To examine behavioural and neural processing of pitch cues in adults with normal hearing (NH) and adults with sensorineural hearing loss (SNHL). Methods All participants completed a test of behavioural sensitivity to pitch cues using the TFS1 test ( Moore and Sek, 2009a ). Cortical potentials (N1, P2 and acoustic change complex) were recorded in response to frequency shifted (deltaF) tone complexes in an ‘ABA’ pattern. Results The SNHL group performed more poorly than the NH group for the TFS1 test. P2 was more reflective of pitch differences between the complexes than N1. The presence of acoustic change complex in response to the TFS transitions in the ABA stimulus varied with deltaF. Acoustic change complex amplitudes were reduced for the group with SNHL compared to controls. Conclusion Behavioural performance and cortical responses reflect pitch processing depending on the salience of pitch cues. Significance These data support the use of cortical potentials and behavioural sensitivity tests to measure processing of complex acoustic cues in people with hearing loss. This approach has potential for evaluation of benefit from auditory training and hearing instrument digital signal processing strategies. |
Databáze: | OpenAIRE |
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