Auditory Brainstem Encoding of Plosives in Korean Normal Hearing Listeners

• DOI: 10.21848/asr.2017.13.2.101
• Publication Date: 2017-05-30T22:05:59Z
• Authors: Jihyeon Lee; Woojae Han
• Keywords: Auditory brainstem response

Purpose: It is increasingly acknowledged that auditory brainstem response (ABR) elicited by speech can reflect the listener's perceptual cues of complex sound with replicability and reliability.This study sought to identify responses evoked Korean syllables characterize any relation between acoustic features their neurophysiological at level.Methods: Thirty young adults normal hearing who were native speakers participated in study.As stimuli, nine syllables, i.e., a combination plosives /p, p*, p h , t, t*, t k, k*, k / followed an /a/ vowel naturally produced male speaker, applied for electrophysiological measure.Each waveform syllable was analyzed seven peaks, V, A, C, D, E, F, O, determine latency, amplitude, morphology.Results: According transient responses, peak V-A latencies alveolar significantly delayed, while supporting long voice onset time.Latencies C /ta/ /t*a/ prolonged, having longer consonant duration.Although O usually looked prolonged aspirate they did not support characteristics terms end voicing.In view sustained significant difference exists latency D-E E-F inter-peaks.However, unlike response, no sustain found.Conclusion: Speech-evoked ABR reflects clear synchronized patterns brainstem, providing information on regarding pathway encoding plosive portion speech.It provide fundamental biological snapshot processing predicts auditory-based communication skills gain.