Independent Component Analysis Applied on Multi–channel Auditory Steady–state Response Measurements
نویسندگان
چکیده
The application of auditory steady–state responses (ASSRs) is an objective and frequency specific technique to assess reliable hearing thresholds at audiometric frequencies. Unfortunately, the duration of ASSR measurement can be long, which is unpractical for wide scale clinical application. Therefore, we propose independent component analysis (ICA) as a tool to improve the ASSR detection in recorded multi–channel electroencephalogram (EEG) data obtained at high intensities. We conclude that ICA is able to reduce measurement duration significantly. For a multi–channel implementation, near–optimal performance is obtained with five–channel recordings. A proposal for a generative model is suggested. This model may provide the ability to explain some observed characteristics of the ICA–ASSR problem.
منابع مشابه
Validation of multi-channel auditory steady-state response in adults with sensorineural hearing loss.
OBJECTIVE For various medico-legal and financial reasons, some patients may clinically demonstrate an exaggerated hearing loss that varies in degree, nature and laterality. The purpose of this study was to evaluate whether multi-channel auditory steady-state response measurement can be used as an objective test of auditory thresholds in adults with sensorineural hearing loss. STUDY DESIGN AND...
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