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Titolo:
A mathematical analysis of the characteristics of the system connecting the cerebellar ventral paraflocculus and extraoculomotor nucleus of alert monkeys during upward ocular following responses
Autore:
Yamamoto, K; Kobayashi, Y; Takemura, A; Kawano, K; Kawato, M;
Indirizzi:
Electrotech Lab, Neurosci Sect, Tsukuba, Ibaraki 3058568, Japan Electrotech Lab Tsukuba Ibaraki Japan 3058568 uba, Ibaraki 3058568, Japan Natl Inst Physiol Sci, Aichi 4448585, Japan Natl Inst Physiol Sci Aichi Japan 4448585 siol Sci, Aichi 4448585, Japan Japan Sci & Technol Corp, CREST, Tsukuba, Ibaraki 3058568, Japan Japan Sci& Technol Corp Tsukuba Ibaraki Japan 3058568 aki 3058568, Japan ATR, Human Informat Proc Res Labs, Kyoto 6190288, Japan ATR Kyoto Japan 6190288 man Informat Proc Res Labs, Kyoto 6190288, Japan
Titolo Testata:
NEUROSCIENCE RESEARCH
fascicolo: 4, volume: 38, anno: 2000,
pagine: 425 - 435
SICI:
0168-0102(200012)38:4<425:AMAOTC>2.0.ZU;2-K
Fonte:
ISI
Lingua:
ENG
Soggetto:
VERTICAL EYE-MOVEMENT; MEDIAL LONGITUDINAL FASCICULUS; SUPERIOR VESTIBULAR NUCLEUS; OCULOMOTOR BURST GENERATOR; TEMPORAL FIRING PATTERNS; INTERSTITIAL NUCLEUS; PURKINJE-CELLS; NEURAL ACTIVITY; ON-DIRECTIONS; NEURONS;
Keywords:
ocular following; ventral paraflocculus; inverse dynamics analysis; neural integrator; monkey;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Citazioni:
47
Recensione:
Indirizzi per estratti:
Indirizzo: Yamamoto, K Electrotech Lab, Neurosci Sect, 1-1-4 Umezono, Tsukuba, Ibaraki 3058568, Japan Electrotech Lab 1-1-4 Umezono Tsukuba Ibaraki Japan 3058568 an
Citazione:
K. Yamamoto et al., "A mathematical analysis of the characteristics of the system connecting the cerebellar ventral paraflocculus and extraoculomotor nucleus of alert monkeys during upward ocular following responses", NEUROSCI RE, 38(4), 2000, pp. 425-435

Abstract

Movements of the visual scene evoke short-latency ocular-following-responses (OFR). Many studies suggest that a neural pathway containing the cerebellar-ventral-paraflocculus (VPFL) mediates OFR, The relationship between eyemovement and simple-spike firing in the VPFL during OFR has been studied in detail using an inverse dynamics approach. The relationship between eye movement and cell firing in the extraoculomotor nucleus (MN) has already been reported. However, no studies have examined the information transformation that occurs between the VPFL and the MN during OFR. In this paper, using an inverse dynamics approach, we derive a transfer function that representsthe characteristics of the structure connecting the VPFL and the MN duringupward OFR. This structure appears to contain a kind of neural integrator,which constructs eye-velocity-and-position information from eye-acceleration-and-velocity information. We propose a diagram for the neural integration commonly at work during all types of upward eye movement. This is a closed-loop circuit containing a low-pass filter. The low-pass filter can construct eye-velocity-and-position information from an eye-acceleration-velocity-position command similar to the final motor command used commonly for all upward eye movements. Anatomical and electrophysiological data suggest thatthe vestibular nuclei-interstitial nucleus of Cajal-vestibular nuclei loopmight perform such neural integration. (C) 2000 Elsevier Science Ireland Ltd and the Japan Neuroscience Society. All rights reserved.

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Documento generato il 23/01/20 alle ore 18:20:17