Research reportFeeding behavior in mammals: corticobulbar projection is reorganized during conversion from sucking to chewing
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Unilateral nasal obstruction affects development of cortical orofacial motor representation in the cortical masticatory area of growing rats
2022, Neuroscience LettersCitation Excerpt :Projection from the cortical sucking area is lost during postnatal development and replaced by projection from the CMA [12]. The reorganization of corticobulbar projection found by Nakamura et al. is consistent with a general reorganization of the corticospinal centrifugal system during development, an adaptive control based on feedback information from the mouth [12]. Rats begin masticatory activity at 3 weeks of age [13], and mastication after weaning has been reported to result in abundant afferent stimulation and to promote brain development [14].
Postnatal Maturation of Glutamatergic Inputs onto Rat Jaw-closing and Jaw-opening Motoneurons
2022, NeuroscienceCitation Excerpt :The jaw-closing muscle activity dramatically changes during the period in which feeding behavior changes from suckling to chewing. Suckling is a simple and patterned motor behavior consisting of jaw closing and opening because milk keeps its physical state unchanged throughout suckling (Iriki et al., 1988; Westneat and Hal, 1992). In rat pups, their incisal teeth first erupt at around P7 (Asahito et al., 1999), and then immature chewing starts approximately at P12 (Westneat and Hal, 1992).
Effect of Pacifier Design on Nonnutritive Suck Maturation and Weight Gain in Preterm Infants: A Pilot Study
2020, Current Therapeutic Research - Clinical and Experimental