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Orofacial sensorimotor function in speech production and perception| old_uid | 17122 |
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| title | Orofacial sensorimotor function in speech production and perception |
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| start_date | 2019/01/31 |
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| schedule | 15h-16h30 |
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| online | no |
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| summary | Human motor control and sensorimotor function is one of fundamental function in human
system. Although it has been broadly investigated in limb and the other skeletal system, the control mechanism for orofacial system is still unknown because of several
neurophysiological differences in sensorimotor characteristics, such as relatively quick
muscle contraction dynamics, lack of muscle proprioceptors in several facial muscles and
muscular hydrostat. Orofacial sensorimotor system is certainly involved in speech
production. Intriguingly, it is also involved in the processing of the perception of speech
sounds. Details of sensorimotor function for speech production and its relationship with
speech perception are still unknown. The current presentation introduces three topics
concerning orofacial sensorimotor system for speech: (1) posture stabilization mechanism
of the tongue (2) somatosensory afferents associated with facial skin deformation in speech production and learning, and (3) somatosensory influence on speech perception and its recalibration. In the series of studies, the technique of mechanical perturbations was used to change the tongue movement during speech production and the afferent inputs arising from facial skin. Observing the response to the perturbation in speech production and
perception provides a peculiar nature of orofacial sensorimotor system in speech
production and perception. |
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| responsibles | Fenouil |
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