An Preliminary Investigation of Speech-Evoked ABR with Two Stimulus Intensities

Author

Fu, Qiu-Yang ; Liang, Yong ; Su, Yuan-Yuan ; Wang, Tao

Author_Institution

Depts. of Otolaryngology at Nanfang Hosp., Southern Med. Univ., Guangzhou, China

fYear

2009

fDate

11-13 June 2009

Firstpage

1

Lastpage

3

Abstract

Auditory brainstem response (ABR) evoked by speech syllable are investigated to present the reference of feature peaks, and explore the mechanism of neural encoding of speech in auditory brainstem in 60 and 80 dB SPL stimulus intensities. Typical speech-ABRs elicited by syllables /da/ were recorded to analyze the transient peak responses in terms of the latencies, amplitudes, areas, and slopes. The results show that in lower intensity condition, the latencies of feature peaks delay significantly. And a stronger correlation occurs between some features peaks was found as well, which may be functioning to maintain a high speech discrimination in poor acoustics circumstances.

Keywords

auditory evoked potentials; neurophysiology; speech; auditory brainstem response; feature peak latency; gain 60 dB; gain 80 dB; neural speech encoding mechanism; speech discrimination; speech evoked ABR; speech syllable; Acoustics; Auditory system; Biomedical engineering; Delay; Diseases; Hospitals; Speech analysis; Speech processing; Speech synthesis; Transient analysis;

fLanguage

English

Publisher

ieee

Conference_Titel

Bioinformatics and Biomedical Engineering , 2009. ICBBE 2009. 3rd International Conference on

Conference_Location

Beijing

Print_ISBN

978-1-4244-2901-1

Electronic_ISBN

978-1-4244-2902-8

Type

conf

DOI

10.1109/ICBBE.2009.5162337

Filename

5162337