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Titolo:
Basilar-membrane response to multicomponent stimuli in chinchilla
Autore:
Rhode, WS; Recio, A;
Indirizzi:
Univ Wisconsin, Dept Physiol, Madison, WI 53706 USA Univ Wisconsin Madison WI USA 53706 , Dept Physiol, Madison, WI 53706 USA
Titolo Testata:
JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA
fascicolo: 2, volume: 110, anno: 2001,
pagine: 981 - 994
SICI:
0001-4966(200108)110:2<981:BRTMSI>2.0.ZU;2-K
Fonte:
ISI
Lingua:
ENG
Soggetto:
AUDITORY-NERVE FIBERS; AMPLITUDE-MODULATED SIGNALS; SPECTRAL FINE-STRUCTURE; GUINEA-PIG COCHLEA; 2-TONE SUPPRESSION; DISCHARGE PATTERNS; COMPLEX TONES; MOSSBAUER TECHNIQUE; IMPULSE RESPONSES; PITCH;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Engineering, Computing & Technology
Citazioni:
42
Recensione:
Indirizzi per estratti:
Indirizzo: Rhode, WS Univ Wisconsin, Dept Physiol, 1300 Univ Ave, Madison, WI 53706 USA Univ Wisconsin 1300 Univ Ave Madison WI USA 53706 , WI 53706 USA
Citazione:
W.S. Rhode e A. Recio, "Basilar-membrane response to multicomponent stimuli in chinchilla", J ACOUST SO, 110(2), 2001, pp. 981-994

Abstract

The response of chinchilla basilar membrane in the basal region of the cochlea to multicomponent (1, 3, 5, 6, or 7) stimuli was studied using a laserinterferometer. Three-component stimuli were amplitude-modulated signals with modulation depths that varied from 25% to 200% and the modulation frequency varied from 100 to 2000 Hz while the carrier frequency was set to the characteristic frequency of the region under study (similar to6.3 to 9 kHz). Results indicate that, for certain modulation frequencies and depths, there is enhancement of the response. Responses to five equal-amplitude sine wave stimuli indicated the occurrence of nonlinear phenomena such as spectral edge enhancement, present when the frequency spacing was less than 200 Hz, and mutual suppression. For five-component stimuli, the first, third, or fifth component was placed at the characteristic frequency and the component frequency separation was varied over a 2-kHz range. Responses to seven component stimuli were similar to those of five-component stimuli. Six-component stimuli were generated by leaving out the center component of the seven-component stimuli. In the latter case, the center component was restored in the basilar-membrane response as a result of distortion-product generation in the nonlinear cochlea. (C) 2001 Acoustical Society of America.

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Documento generato il 05/12/20 alle ore 13:16:01