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Verhaert, Nicolas

Transient and Steady State Auditory Responses With Direct Acoustic Cochlear Stimulation

Direct acoustic cochlear implants directly stimulate the
cochlear fluid of the inner ear by means of a stapes piston driven by an
actuator and show encouraging speech understanding in noise results
for patients with severe to profound mixed hearing loss. Auditory evoked
potentials recorded in such patients would allow for the objective evaluation
of the aided auditory pathway. The aim of this study was (1) to
develop a stimulation setup for EEG recordings in subjects with direct
acoustic cochlear implants, (2) to show the feasibility of recording auditory
brainstem responses (ABRs) and auditory steady state responses
(ASSRs), and (3) to analyze the relation between electrophysiological thresholds derived from these responses and behavioral thresholds.

Subjects--Topical Terms:
Acoustic hearing implant, , , ,
Auditory brainstem response
Auditory steady state response
Direct acoustic cochlear stimulation
Electrophysiology,
Mixed hearing loss
Objective measures.