The Experts below are selected from a list of 273 Experts worldwide ranked by ideXlab platform
Osamu Hidaka - One of the best experts on this subject based on the ideXlab platform.
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Putative feed-forward control of jaw-closing muscle activity during rhythmic jaw movements in the anesthetized rabbit.
Journal of neurophysiology, 2001Co-Authors: Akira Komuro, Toshifumi Morimoto, Yuji Masuda, Takafumi Kato, Koichi Iwata, Tomio Inoue, Osamu HidakaAbstract:When a thin plastic test strip of various hardness is placed between the upper and lower teeth during rhythmical jaw movements induced by electrical stimulation of the cortical Masticatory area (CMA) in anesthetized rabbits, electromyographic (EMG) activity of the masseter muscle is facilitated in a hardness-dependent manner. This facilitatory masseteric response (FMR) often occurred prior to contact of the teeth to the strip, and thus preceded the onset of the Masticatory Force. Since this finding suggests involvement of a feed-forward mechanism in the induction of the FMR, the temporal relationship between the onset of the FMR and that of the Masticatory Force was analyzed in five sequential Masticatory cycles after application of the strip. The FMR was found to precede the onset of Masticatory Force from the second Masticatory cycle after application of the strip, but never did in the first cycle. This finding supports the concept of a feed-forward control mechanism that modulates FMR timing. Furthermore, the FMR preceding the Force onset disappeared after making a lesion of the mesencephalic trigeminal nucleus (MesV) where the ganglion cells of the muscle spindle afferents from the jaw-closing muscles are located. In contrast, no such change occurred after blocking periodontal afferents by transection of both the maxillary and the inferior alveolar nerves. The putative feed-forward control of the FMR is therefore dependent mainly on sensory inputs from the muscle spindles, but little on those from the periodontal receptors, if any. We further examined the involvement of the CMA with the putative feed-forward control of the FMR via the transcortical loop. For this purpose, rhythmical jaw movements were induced by stimulation of the pyramidal tract. No significant change in the timing of the FMR occurred after the CMA ablation, which strongly suggests that the CMA is not involved in the putative feed-forward control of the FMR. The FMR was also noted to increase significantly in a hardness-dependent manner even after the MesV lesion, although the rate of increment decreased significantly. Contribution of muscle spindles and periodontal receptors to the hardness-dependent change of the FMR is discussed.
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Influence of food thickness and hardness on possible feed-forward control of the masseteric muscle activity in the anesthetized rabbit.
Neuroscience research, 2001Co-Authors: Akira Komuro, Osamu Hidaka, Yuji Masuda, Takafumi Kato, Masayuki Kobayashi, Kouichi Iwata, Toshifumi MorimotoAbstract:The facilitatory masseteric muscle response (FMR) elicited by polyurethane foam 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 not be 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 CRJMs and 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 the food in the following cycle, and such modulation may help chewing rhythms remain stable.
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Sensory control of Masticatory jaw movements according to food consistencies in the rabbit
Hydrocolloids, 2000Co-Authors: Toshifumi Morimoto, Osamu Hidaka, Yuji Masuda, Tomio Inoue, Akira KomuroAbstract:Publisher Summary This chapter examines the roles of periodontal and muscle spindle afferents on regulating mastication, andfocuses on an experimental study carried out to study the same. This experiment makes use of awake and anesthetized rabbits. After the bilateral combination of the maxillary and inferior alveolar nerves in the awake rabbits, the jaw movements become smaller both vertically and horizontally, their trajectories become irregular, and electromyograms (EMGs) activities of their jaw-closing muscles are greatly reduced during mastication. During their rhythmic jaw movements induced by repetitive electrical stimulation of cerebral cortex in the anesthetized rabbits, one of polyurethane foam strips of varying hardness are inserted between the upper molars and the Force transducers. The peak and buildup speed of the Masticatory Force and the EMG of the masseteric muscles increase in proportion to the hardness of the test strip-by-strip application. After the sectioning of the maxillary and inferior alveolar nerves, the buildup speed of the Masticatory Force is significantly slowed down and the peak Force tends to decrease during the strip application. Lesioning trigeminal mesencephalic nucleus (MesV), where the cell bodies of the muscle spindle afferents are located, also reduces the enhancement of the masseteric EMG during the strip application. When the MesV is lesioned in combination with sectioning the maxillary and inferior alveolar nerves, the facilitatory responses of masseter nucleus is almost abolished. It is therefore concluded that both periodontal and muscle spindle afferents are mainly responsible for the regulation of Masticatory muscle activities and jaw movements.
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Regulation of Masticatory Force During Cortically Induced Rhythmic Jaw Movements in the Anesthetized Rabbit
Journal of neurophysiology, 1997Co-Authors: Osamu Hidaka, Toshifumi Morimoto, Yuji Masuda, Takafumi Kato, Ryuji Matsuo, Tsuyoshi Inoue, Masayuki Kobayashi, Kenji TakadaAbstract:Hidaka, O., T. Morimoto, Y. Masuda, T. Kato, R. Matsuo, T. Inoue, M. Kobayashi, and K. Takada. Regulation of Masticatory Force during cortically induced rhythmic jaw movements in the anesthetized r...
Toshifumi Morimoto - One of the best experts on this subject based on the ideXlab platform.
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Putative feed-forward control of jaw-closing muscle activity during rhythmic jaw movements in the anesthetized rabbit.
Journal of neurophysiology, 2001Co-Authors: Akira Komuro, Toshifumi Morimoto, Yuji Masuda, Takafumi Kato, Koichi Iwata, Tomio Inoue, Osamu HidakaAbstract:When a thin plastic test strip of various hardness is placed between the upper and lower teeth during rhythmical jaw movements induced by electrical stimulation of the cortical Masticatory area (CMA) in anesthetized rabbits, electromyographic (EMG) activity of the masseter muscle is facilitated in a hardness-dependent manner. This facilitatory masseteric response (FMR) often occurred prior to contact of the teeth to the strip, and thus preceded the onset of the Masticatory Force. Since this finding suggests involvement of a feed-forward mechanism in the induction of the FMR, the temporal relationship between the onset of the FMR and that of the Masticatory Force was analyzed in five sequential Masticatory cycles after application of the strip. The FMR was found to precede the onset of Masticatory Force from the second Masticatory cycle after application of the strip, but never did in the first cycle. This finding supports the concept of a feed-forward control mechanism that modulates FMR timing. Furthermore, the FMR preceding the Force onset disappeared after making a lesion of the mesencephalic trigeminal nucleus (MesV) where the ganglion cells of the muscle spindle afferents from the jaw-closing muscles are located. In contrast, no such change occurred after blocking periodontal afferents by transection of both the maxillary and the inferior alveolar nerves. The putative feed-forward control of the FMR is therefore dependent mainly on sensory inputs from the muscle spindles, but little on those from the periodontal receptors, if any. We further examined the involvement of the CMA with the putative feed-forward control of the FMR via the transcortical loop. For this purpose, rhythmical jaw movements were induced by stimulation of the pyramidal tract. No significant change in the timing of the FMR occurred after the CMA ablation, which strongly suggests that the CMA is not involved in the putative feed-forward control of the FMR. The FMR was also noted to increase significantly in a hardness-dependent manner even after the MesV lesion, although the rate of increment decreased significantly. Contribution of muscle spindles and periodontal receptors to the hardness-dependent change of the FMR is discussed.
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Influence of food thickness and hardness on possible feed-forward control of the masseteric muscle activity in the anesthetized rabbit.
Neuroscience research, 2001Co-Authors: Akira Komuro, Osamu Hidaka, Yuji Masuda, Takafumi Kato, Masayuki Kobayashi, Kouichi Iwata, Toshifumi MorimotoAbstract:The facilitatory masseteric muscle response (FMR) elicited by polyurethane foam 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 not be 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 CRJMs and 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 the food in the following cycle, and such modulation may help chewing rhythms remain stable.
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Sensory control of Masticatory jaw movements according to food consistencies in the rabbit
Hydrocolloids, 2000Co-Authors: Toshifumi Morimoto, Osamu Hidaka, Yuji Masuda, Tomio Inoue, Akira KomuroAbstract:Publisher Summary This chapter examines the roles of periodontal and muscle spindle afferents on regulating mastication, andfocuses on an experimental study carried out to study the same. This experiment makes use of awake and anesthetized rabbits. After the bilateral combination of the maxillary and inferior alveolar nerves in the awake rabbits, the jaw movements become smaller both vertically and horizontally, their trajectories become irregular, and electromyograms (EMGs) activities of their jaw-closing muscles are greatly reduced during mastication. During their rhythmic jaw movements induced by repetitive electrical stimulation of cerebral cortex in the anesthetized rabbits, one of polyurethane foam strips of varying hardness are inserted between the upper molars and the Force transducers. The peak and buildup speed of the Masticatory Force and the EMG of the masseteric muscles increase in proportion to the hardness of the test strip-by-strip application. After the sectioning of the maxillary and inferior alveolar nerves, the buildup speed of the Masticatory Force is significantly slowed down and the peak Force tends to decrease during the strip application. Lesioning trigeminal mesencephalic nucleus (MesV), where the cell bodies of the muscle spindle afferents are located, also reduces the enhancement of the masseteric EMG during the strip application. When the MesV is lesioned in combination with sectioning the maxillary and inferior alveolar nerves, the facilitatory responses of masseter nucleus is almost abolished. It is therefore concluded that both periodontal and muscle spindle afferents are mainly responsible for the regulation of Masticatory muscle activities and jaw movements.
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Regulation of Masticatory Force During Cortically Induced Rhythmic Jaw Movements in the Anesthetized Rabbit
Journal of neurophysiology, 1997Co-Authors: Osamu Hidaka, Toshifumi Morimoto, Yuji Masuda, Takafumi Kato, Ryuji Matsuo, Tsuyoshi Inoue, Masayuki Kobayashi, Kenji TakadaAbstract:Hidaka, O., T. Morimoto, Y. Masuda, T. Kato, R. Matsuo, T. Inoue, M. Kobayashi, and K. Takada. Regulation of Masticatory Force during cortically induced rhythmic jaw movements in the anesthetized r...
Yuji Masuda - One of the best experts on this subject based on the ideXlab platform.
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Putative feed-forward control of jaw-closing muscle activity during rhythmic jaw movements in the anesthetized rabbit.
Journal of neurophysiology, 2001Co-Authors: Akira Komuro, Toshifumi Morimoto, Yuji Masuda, Takafumi Kato, Koichi Iwata, Tomio Inoue, Osamu HidakaAbstract:When a thin plastic test strip of various hardness is placed between the upper and lower teeth during rhythmical jaw movements induced by electrical stimulation of the cortical Masticatory area (CMA) in anesthetized rabbits, electromyographic (EMG) activity of the masseter muscle is facilitated in a hardness-dependent manner. This facilitatory masseteric response (FMR) often occurred prior to contact of the teeth to the strip, and thus preceded the onset of the Masticatory Force. Since this finding suggests involvement of a feed-forward mechanism in the induction of the FMR, the temporal relationship between the onset of the FMR and that of the Masticatory Force was analyzed in five sequential Masticatory cycles after application of the strip. The FMR was found to precede the onset of Masticatory Force from the second Masticatory cycle after application of the strip, but never did in the first cycle. This finding supports the concept of a feed-forward control mechanism that modulates FMR timing. Furthermore, the FMR preceding the Force onset disappeared after making a lesion of the mesencephalic trigeminal nucleus (MesV) where the ganglion cells of the muscle spindle afferents from the jaw-closing muscles are located. In contrast, no such change occurred after blocking periodontal afferents by transection of both the maxillary and the inferior alveolar nerves. The putative feed-forward control of the FMR is therefore dependent mainly on sensory inputs from the muscle spindles, but little on those from the periodontal receptors, if any. We further examined the involvement of the CMA with the putative feed-forward control of the FMR via the transcortical loop. For this purpose, rhythmical jaw movements were induced by stimulation of the pyramidal tract. No significant change in the timing of the FMR occurred after the CMA ablation, which strongly suggests that the CMA is not involved in the putative feed-forward control of the FMR. The FMR was also noted to increase significantly in a hardness-dependent manner even after the MesV lesion, although the rate of increment decreased significantly. Contribution of muscle spindles and periodontal receptors to the hardness-dependent change of the FMR is discussed.
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Influence of food thickness and hardness on possible feed-forward control of the masseteric muscle activity in the anesthetized rabbit.
Neuroscience research, 2001Co-Authors: Akira Komuro, Osamu Hidaka, Yuji Masuda, Takafumi Kato, Masayuki Kobayashi, Kouichi Iwata, Toshifumi MorimotoAbstract:The facilitatory masseteric muscle response (FMR) elicited by polyurethane foam 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 not be 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 CRJMs and 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 the food in the following cycle, and such modulation may help chewing rhythms remain stable.
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Sensory control of Masticatory jaw movements according to food consistencies in the rabbit
Hydrocolloids, 2000Co-Authors: Toshifumi Morimoto, Osamu Hidaka, Yuji Masuda, Tomio Inoue, Akira KomuroAbstract:Publisher Summary This chapter examines the roles of periodontal and muscle spindle afferents on regulating mastication, andfocuses on an experimental study carried out to study the same. This experiment makes use of awake and anesthetized rabbits. After the bilateral combination of the maxillary and inferior alveolar nerves in the awake rabbits, the jaw movements become smaller both vertically and horizontally, their trajectories become irregular, and electromyograms (EMGs) activities of their jaw-closing muscles are greatly reduced during mastication. During their rhythmic jaw movements induced by repetitive electrical stimulation of cerebral cortex in the anesthetized rabbits, one of polyurethane foam strips of varying hardness are inserted between the upper molars and the Force transducers. The peak and buildup speed of the Masticatory Force and the EMG of the masseteric muscles increase in proportion to the hardness of the test strip-by-strip application. After the sectioning of the maxillary and inferior alveolar nerves, the buildup speed of the Masticatory Force is significantly slowed down and the peak Force tends to decrease during the strip application. Lesioning trigeminal mesencephalic nucleus (MesV), where the cell bodies of the muscle spindle afferents are located, also reduces the enhancement of the masseteric EMG during the strip application. When the MesV is lesioned in combination with sectioning the maxillary and inferior alveolar nerves, the facilitatory responses of masseter nucleus is almost abolished. It is therefore concluded that both periodontal and muscle spindle afferents are mainly responsible for the regulation of Masticatory muscle activities and jaw movements.
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Regulation of Masticatory Force During Cortically Induced Rhythmic Jaw Movements in the Anesthetized Rabbit
Journal of neurophysiology, 1997Co-Authors: Osamu Hidaka, Toshifumi Morimoto, Yuji Masuda, Takafumi Kato, Ryuji Matsuo, Tsuyoshi Inoue, Masayuki Kobayashi, Kenji TakadaAbstract:Hidaka, O., T. Morimoto, Y. Masuda, T. Kato, R. Matsuo, T. Inoue, M. Kobayashi, and K. Takada. Regulation of Masticatory Force during cortically induced rhythmic jaw movements in the anesthetized r...
Akira Komuro - One of the best experts on this subject based on the ideXlab platform.
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Putative feed-forward control of jaw-closing muscle activity during rhythmic jaw movements in the anesthetized rabbit.
Journal of neurophysiology, 2001Co-Authors: Akira Komuro, Toshifumi Morimoto, Yuji Masuda, Takafumi Kato, Koichi Iwata, Tomio Inoue, Osamu HidakaAbstract:When a thin plastic test strip of various hardness is placed between the upper and lower teeth during rhythmical jaw movements induced by electrical stimulation of the cortical Masticatory area (CMA) in anesthetized rabbits, electromyographic (EMG) activity of the masseter muscle is facilitated in a hardness-dependent manner. This facilitatory masseteric response (FMR) often occurred prior to contact of the teeth to the strip, and thus preceded the onset of the Masticatory Force. Since this finding suggests involvement of a feed-forward mechanism in the induction of the FMR, the temporal relationship between the onset of the FMR and that of the Masticatory Force was analyzed in five sequential Masticatory cycles after application of the strip. The FMR was found to precede the onset of Masticatory Force from the second Masticatory cycle after application of the strip, but never did in the first cycle. This finding supports the concept of a feed-forward control mechanism that modulates FMR timing. Furthermore, the FMR preceding the Force onset disappeared after making a lesion of the mesencephalic trigeminal nucleus (MesV) where the ganglion cells of the muscle spindle afferents from the jaw-closing muscles are located. In contrast, no such change occurred after blocking periodontal afferents by transection of both the maxillary and the inferior alveolar nerves. The putative feed-forward control of the FMR is therefore dependent mainly on sensory inputs from the muscle spindles, but little on those from the periodontal receptors, if any. We further examined the involvement of the CMA with the putative feed-forward control of the FMR via the transcortical loop. For this purpose, rhythmical jaw movements were induced by stimulation of the pyramidal tract. No significant change in the timing of the FMR occurred after the CMA ablation, which strongly suggests that the CMA is not involved in the putative feed-forward control of the FMR. The FMR was also noted to increase significantly in a hardness-dependent manner even after the MesV lesion, although the rate of increment decreased significantly. Contribution of muscle spindles and periodontal receptors to the hardness-dependent change of the FMR is discussed.
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Influence of food thickness and hardness on possible feed-forward control of the masseteric muscle activity in the anesthetized rabbit.
Neuroscience research, 2001Co-Authors: Akira Komuro, Osamu Hidaka, Yuji Masuda, Takafumi Kato, Masayuki Kobayashi, Kouichi Iwata, Toshifumi MorimotoAbstract:The facilitatory masseteric muscle response (FMR) elicited by polyurethane foam 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 not be 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 CRJMs and 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 the food in the following cycle, and such modulation may help chewing rhythms remain stable.
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Sensory control of Masticatory jaw movements according to food consistencies in the rabbit
Hydrocolloids, 2000Co-Authors: Toshifumi Morimoto, Osamu Hidaka, Yuji Masuda, Tomio Inoue, Akira KomuroAbstract:Publisher Summary This chapter examines the roles of periodontal and muscle spindle afferents on regulating mastication, andfocuses on an experimental study carried out to study the same. This experiment makes use of awake and anesthetized rabbits. After the bilateral combination of the maxillary and inferior alveolar nerves in the awake rabbits, the jaw movements become smaller both vertically and horizontally, their trajectories become irregular, and electromyograms (EMGs) activities of their jaw-closing muscles are greatly reduced during mastication. During their rhythmic jaw movements induced by repetitive electrical stimulation of cerebral cortex in the anesthetized rabbits, one of polyurethane foam strips of varying hardness are inserted between the upper molars and the Force transducers. The peak and buildup speed of the Masticatory Force and the EMG of the masseteric muscles increase in proportion to the hardness of the test strip-by-strip application. After the sectioning of the maxillary and inferior alveolar nerves, the buildup speed of the Masticatory Force is significantly slowed down and the peak Force tends to decrease during the strip application. Lesioning trigeminal mesencephalic nucleus (MesV), where the cell bodies of the muscle spindle afferents are located, also reduces the enhancement of the masseteric EMG during the strip application. When the MesV is lesioned in combination with sectioning the maxillary and inferior alveolar nerves, the facilitatory responses of masseter nucleus is almost abolished. It is therefore concluded that both periodontal and muscle spindle afferents are mainly responsible for the regulation of Masticatory muscle activities and jaw movements.
Takafumi Kato - One of the best experts on this subject based on the ideXlab platform.
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Putative feed-forward control of jaw-closing muscle activity during rhythmic jaw movements in the anesthetized rabbit.
Journal of neurophysiology, 2001Co-Authors: Akira Komuro, Toshifumi Morimoto, Yuji Masuda, Takafumi Kato, Koichi Iwata, Tomio Inoue, Osamu HidakaAbstract:When a thin plastic test strip of various hardness is placed between the upper and lower teeth during rhythmical jaw movements induced by electrical stimulation of the cortical Masticatory area (CMA) in anesthetized rabbits, electromyographic (EMG) activity of the masseter muscle is facilitated in a hardness-dependent manner. This facilitatory masseteric response (FMR) often occurred prior to contact of the teeth to the strip, and thus preceded the onset of the Masticatory Force. Since this finding suggests involvement of a feed-forward mechanism in the induction of the FMR, the temporal relationship between the onset of the FMR and that of the Masticatory Force was analyzed in five sequential Masticatory cycles after application of the strip. The FMR was found to precede the onset of Masticatory Force from the second Masticatory cycle after application of the strip, but never did in the first cycle. This finding supports the concept of a feed-forward control mechanism that modulates FMR timing. Furthermore, the FMR preceding the Force onset disappeared after making a lesion of the mesencephalic trigeminal nucleus (MesV) where the ganglion cells of the muscle spindle afferents from the jaw-closing muscles are located. In contrast, no such change occurred after blocking periodontal afferents by transection of both the maxillary and the inferior alveolar nerves. The putative feed-forward control of the FMR is therefore dependent mainly on sensory inputs from the muscle spindles, but little on those from the periodontal receptors, if any. We further examined the involvement of the CMA with the putative feed-forward control of the FMR via the transcortical loop. For this purpose, rhythmical jaw movements were induced by stimulation of the pyramidal tract. No significant change in the timing of the FMR occurred after the CMA ablation, which strongly suggests that the CMA is not involved in the putative feed-forward control of the FMR. The FMR was also noted to increase significantly in a hardness-dependent manner even after the MesV lesion, although the rate of increment decreased significantly. Contribution of muscle spindles and periodontal receptors to the hardness-dependent change of the FMR is discussed.
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Influence of food thickness and hardness on possible feed-forward control of the masseteric muscle activity in the anesthetized rabbit.
Neuroscience research, 2001Co-Authors: Akira Komuro, Osamu Hidaka, Yuji Masuda, Takafumi Kato, Masayuki Kobayashi, Kouichi Iwata, Toshifumi MorimotoAbstract:The facilitatory masseteric muscle response (FMR) elicited by polyurethane foam 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 not be 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 CRJMs and 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 the food in the following cycle, and such modulation may help chewing rhythms remain stable.
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Regulation of Masticatory Force During Cortically Induced Rhythmic Jaw Movements in the Anesthetized Rabbit
Journal of neurophysiology, 1997Co-Authors: Osamu Hidaka, Toshifumi Morimoto, Yuji Masuda, Takafumi Kato, Ryuji Matsuo, Tsuyoshi Inoue, Masayuki Kobayashi, Kenji TakadaAbstract:Hidaka, O., T. Morimoto, Y. Masuda, T. Kato, R. Matsuo, T. Inoue, M. Kobayashi, and K. Takada. Regulation of Masticatory Force during cortically induced rhythmic jaw movements in the anesthetized r...