Potential Destructive Binaural Interaction Effects in Auditory Steady-State Response Measurements.

ABSTRACT: An aided sound-field auditory steady-state response (ASSR) has the potential to be used to objectively validate hearing-aid (HA) fittings in clinics. Each aided ear should ideally be tested independently, but it is suspected that binaural testing may be used by clinics to reduce test time. This study simulates dichotic ASSR sound-field conditions to examine the risk of making false judgments due to unchecked binaural effects. Unaided ASSRs were recorded with a clinical two-channel electroencephalography (EEG) system for 15 normal hearing subjects using a three-band CE-Chirp® stimulus. It was found that the noise corrected power of a response harmonic can be suppressed by up to 10 dB by introducing large interaural time differences equal to half the time period of the stimulus envelope, whi

SUBMITTER: Watson S 

PROVIDER: S-EPMC8580520 | biostudies-literature | 2021 Jan-Dec

REPOSITORIES: biostudies-literature