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Titolo:
TRANSIENT EFFECTS DURING THE CHOPPING RESPONSE OF LSO NEURONS
Autore:
ZACKSENHOUSE M; JOHNSON DH;
Indirizzi:
WEIZMANN INST SCI IL-76100 REHOVOT ISRAEL RICE UNIV,DEPT ELECT & COMP ENGN,INST COMP & INFORMAT TECHNOL HOUSTONTX 77251 UNIV TEXAS,HLTH SCI CTR,CTR SENSORY SCI HOUSTON TX 77030
Titolo Testata:
The Journal of the Acoustical Society of America
fascicolo: 3, volume: 98, anno: 1995,
pagine: 1410 - 1422
SICI:
0001-4966(1995)98:3<1410:TEDTCR>2.0.ZU;2-H
Fonte:
ISI
Lingua:
ENG
Soggetto:
LATERAL SUPERIOR OLIVE; UNIT EXCITATORY RESPONSES; BINAURAL TONE BURSTS; DISCHARGE PATTERNS; CAT; FREQUENCY; STIMULI; COMPLEX; LEVEL; TIME;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
44
Recensione:
Indirizzi per estratti:
Citazione:
M. Zacksenhouse e D.H. Johnson, "TRANSIENT EFFECTS DURING THE CHOPPING RESPONSE OF LSO NEURONS", The Journal of the Acoustical Society of America, 98(3), 1995, pp. 1410-1422

Abstract

The initial transient chopping response of LSO neuron discharges to both monaural and binaural tone-burst stimuli in the context of a previously developed point process model of the later sustained response isanalyzed and modeled. The analysis reveals the nature of the initial transient response to stimulus onset: The model's stimulus-dependent parameters vary with poststimulus-onset time while the neuron's intrinsic recovery characteristics remain constant throughout the response. By applying maximum-likelihood estimation techniques to determine the time course of the stimulus-dependent parameters, it was found that theinitial excitatory and inhibitory effects decay exponentially, with their ratio determining the instantaneous rate of firing and their relative latency determining the extent of the initial chopping pattern. The ''absolute'' and apparent deadtime also vary exponentially during the transient portion of the response. It is concluded that the recovery characteristics of LSO neurons and the exponential nature of the transient effects give rise to a tightly distributed latency period and aregular chopping response pattern that could encode azimuthal information. (C) 1995 Acoustical Society of America.

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Documento generato il 29/11/20 alle ore 15:57:14