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Titolo:
Influence of food thickness and hardness on possible feed-forward control of the masseteric muscle activity in the anesthetized rabbit
Autore:
Komuro, A; Masuda, Y; Iwata, K; Kobayashi, M; Kato, T; Hidaka, O; Morimoto, T;
Indirizzi:
Osaka Univ, Fac Dent, Dept Oral Physiol, Suita, Osaka 5650871, Japan OsakaUniv Suita Osaka Japan 5650871 Physiol, Suita, Osaka 5650871, Japan
Titolo Testata:
NEUROSCIENCE RESEARCH
fascicolo: 1, volume: 39, anno: 2001,
pagine: 21 - 29
SICI:
0168-0102(200101)39:1<21:IOFTAH>2.0.ZU;2-M
Fonte:
ISI
Lingua:
ENG
Soggetto:
INDUCED RHYTHMIC JAW; HUMAN MASTICATION; MOVEMENTS; SIZE;
Keywords:
feed-forward mechanism; masseteric EMG; masticatory force; rabbit; food bolus;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Citazioni:
22
Recensione:
Indirizzi per estratti:
Indirizzo: Morimoto, T Osaka Univ, Fac Dent, Dept Oral Physiol, 1-8 Yamadaoka, Suita,Osaka 5650871, Japan Osaka Univ 1-8 Yamadaoka Suita Osaka Japan 5650871 0871, Japan
Citazione:
A. Komuro et al., "Influence of food thickness and hardness on possible feed-forward control of the masseteric muscle activity in the anesthetized rabbit", NEUROSCI RE, 39(1), 2001, pp. 21-29

Abstract

The facilitatory masseteric muscle response (FMR) elicited by polyurethanefoam strip application between the opposing molars during cortically-induced rhythmic jaw movements (CRJMs) was induced earlier than masticatory force onset. The occurrence of this early response of the FMR (e-FMR) could notbe explained by a simple reflex mechanism. One possible mechanism of the e-FMR is the involvement of a feed-forward control mechanism of the masticatory jaw movement. In the present study, experimentally designed polyurethane foam strips with various thickness and hardness were applied during CRJMsand analyzed in terms of how the e-FMR was modulated by the food hardness and thickness. The FMR onset was not related to the strip thickness or the strip hardness. However, the magnitude of the e-FMR increased in a thickness and a hardness-dependent manner. The sensory information of the food properties in the masticatory cycle may make the FMR adequate to chewing of thefood in the following cycle. and such modulation may help chewing rhythms remain stable. (C) 2001 Elsevier Science ireland Ltd and the Japan Neuroscience Society. All rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 19/01/20 alle ore 01:25:52