TY - GEN
T1 - Time-frequency methods for studying non-stationary auditory responses
AU - García-Puente, Y.
AU - Prado-Gutiérrez, P.
AU - Martínez-Montes, E.
N1 - Publisher Copyright:
© Springer International Publishing Switzerland 2015.
PY - 2015
Y1 - 2015
N2 - The study of temporal processing of acoustic sig-nals by the auditory system becomes increasingly important for the development of new strategies for diagnosis and treat-ment of people who are deaf or hearing impaired. Objectives: To evaluate three time-frequency methods (Short Time Fouri-er Transform, Morlet Wavelet Transform, and a newly pro-posed Chirp Analyzer) for the reliable estimation of non-stationary auditory electrophysiological responses, which could be used in the study/diagnosis of hearing problems in clinical practice. Methods: Using simulated and real data, we compare the robustness and reliability of the three methods for different levels of noise and response forms, as well as with different physiological response delay. Results: In general, the three methods provide a fairly reliable estimate of the physio-logical response when there are low levels of noise and re-sponse latency is small. The Chirp Analyzer is faster and more robust to noise, while continuous Morlet Wavelet Transform is very sensitive to noise but more reliable when the responses appears with a considerable delay. Conclusions: Results sug-gest that the Chirp Analyzer is a promising tool for estimating non-stationary auditory electrophysiological responses, alt-hough future validation is needed.
AB - The study of temporal processing of acoustic sig-nals by the auditory system becomes increasingly important for the development of new strategies for diagnosis and treat-ment of people who are deaf or hearing impaired. Objectives: To evaluate three time-frequency methods (Short Time Fouri-er Transform, Morlet Wavelet Transform, and a newly pro-posed Chirp Analyzer) for the reliable estimation of non-stationary auditory electrophysiological responses, which could be used in the study/diagnosis of hearing problems in clinical practice. Methods: Using simulated and real data, we compare the robustness and reliability of the three methods for different levels of noise and response forms, as well as with different physiological response delay. Results: In general, the three methods provide a fairly reliable estimate of the physio-logical response when there are low levels of noise and re-sponse latency is small. The Chirp Analyzer is faster and more robust to noise, while continuous Morlet Wavelet Transform is very sensitive to noise but more reliable when the responses appears with a considerable delay. Conclusions: Results sug-gest that the Chirp Analyzer is a promising tool for estimating non-stationary auditory electrophysiological responses, alt-hough future validation is needed.
KW - Auditory temporal processing
KW - Envelope following response
KW - Steady state
KW - Time-frequency analysis
UR - http://www.scopus.com/inward/record.url?scp=84925250783&partnerID=8YFLogxK
U2 - 10.1007/978-3-319-13117-7_138
DO - 10.1007/978-3-319-13117-7_138
M3 - Conference contribution
AN - SCOPUS:84925250783
T3 - IFMBE Proceedings
SP - 540
EP - 543
BT - VI Latin American Congress on Biomedical Engineering, CLAIB 2014
A2 - Braidot, Ariel
A2 - Hadad, Alejandro
PB - Springer Verlag
T2 - 6th Latin American Congress on Biomedical Engineering, CLAIB 2014
Y2 - 29 October 2014 through 31 October 2014
ER -