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Effects Of Food Consistency On The Pattern Of Extrinsic Tongue Muscle Activities During Mastication In Freely Moving Rabbits

M. Inoue, Yohji Harasawa, K. Yamamura, S. Ariyasinghe, Y. Yamada
Published 2004 · Biology, Medicine

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The effects of physical characteristics of foods on the coordination of extrinsic tongue muscle activities during natural mastication were evaluated. Electromyograms of tongue-retractor (styloglossus, SG) and tongue-protractor (genioglossus, GG) muscles as well as the jaw-movement trajectories were recorded during raw rice and chow pellet chewing in the freely moving rabbit. Each masticatory cycle included a jaw closing (Cl) phase consisting of a fast-closing (FC) and a slow-closing (SC) phase, and a jaw opening (Op) phase. The duration of the Cl and SC phases was found to be much larger while the duration of the FC phase was much smaller during rice chewing than pellet chewing. The jaw movements during rice chewing had smaller amplitudes of the gape and lateral excursion of the jaw as compared with those during pellet chewing. The SG muscle had a double-peaked burst activity in each masticatory cycle with one peak during the Op phase (the SG1 burst) and the other during the Cl phase (the SG2 burst). They were significantly larger during pellet chewing as compared with rice chewing, but the duration of the SG2 burst was significantly longer during rice chewing than pellet chewing. The offset of the SG2 burst was delayed during rice chewing as compared with that during pellet chewing. There was little difference in the activity pattern of the GG burst between the foods. Our present results suggest that the SG muscle activity could be modified by the sensory feedback possibly to adapt to environmental demands during chewing.
This paper references
Changes in reflex responses of the masseter and digastric muscles during sleep in freely behaving rabbits
M. Inoue (1999)
Jaw-Tongue Reflex: Afferents, Central Pathways, and Synaptic Potentials in Hypoglossal Motoneurons in the Cat
Y. Ishiwata (2000)
Neural Control of Tongue Posture
A. Lowe (1990)
Brainstem mechanisms underlying feeding behaviors
J. Lund (1998)
Tongue and jaw muscle activities during chewing and swallowing in freely behaving rabbits
K. Naganuma (2001)
Generation of rhythmical ingestive activities of the trigeminal, facial, and hypoglossal motoneurons in in vitro CNS preparations isolated from rats and mice.
Y. Nakamura (1999)
Characteristics of rhythmic jaw movements of the rabbit.
T. Morimoto (1985)
A lateral jaw movement reflex.
J. Lund (1971)
Coordination of cortically induced rhythmic jaw and tongue movements in the rabbit.
Z. Liu (1993)
Mastication and its control by the brain stem.
J. Lund (1991)
Mastication in the rabbit: a description of movement and muscle activity.
G. Schwartz (1989)
Coordination of jaw and extrinsic tongue muscle activity during rhythmic jaw movements in anesthetized rabbits
S. Ariyasinghe (2004)
Extrinsic tongue and suprahyoid muscle activities during mastication in freely feeding rabbits
M. Inoue (2004)
Possible factors which may affect phase durations in the natural chewing rhythm
Y. Yamada (1996)
Generation of masticatory rhythm in the brainstem
Y. Nakamura (1995)
Effects of the inferior alveolar nerve stimulation on tongue muscle activity during mastication in freely behaving rabbits
Hirokazu Aeba (2002)
Coordination between the masticatory and tongue muscles as seen with different foods in consistency and in reflex activities during natural chewing
Yohsuke Kakizaki (2002)
Regulation of masticatory force during cortically induced rhythmic jaw movements in the anesthetized rabbit.
O. Hidaka (1997)

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