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Lecture

Lecture Template - Ch. 3 and 4 (1 of 1).doc

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Department
Family Studies
Course
FMST 210
Professor
All Professors
Semester
Fall

Description
Chapters 34 Adaptive Reflexes Brain Development and Motor SkillsWhat motor skills are regulated by adaptive reflexes1The palmar reflex occurs when something is placed in the palm of an infants hand and the infant quickly wraps their fingers around the object that touched their palm Their grip is typically quite strong infants can typically hold their own body weight however they may release their fingersgrip quite suddenly On average this reflex disappears when an infant is approximately 46 months2The sucking reflex occurs when something touches the roof of an infants mouth There are two aspects to the sucking reflex 1 expressionto express milk from a nipple an infant instinctively presses the nipple between the roof of their mouth and their tongue and 2 milking the infant instinctively moves their tongue from the areola to the nipple to coax milk from the breast On average this reflex disappears when an infant is approximately 4 months3The rooting reflex occurs when anything strokes an infants cheek or corner of their mouth The infant will automatically turn their head towards the side that was touched On average this reflex disappears when an infant is approximately 34 monthsbreastfeeding4The stepping reflex occurs when the soles of an infants feet touch a flat surface When infants are held upright with their feet placed on a flat surface they will lift their legs as if they are marching or stepping On average this reflex disappears when an infant is approximately 812 months5The plantar reflex is an infants tendency to curl their toes down or away from their shin On average this reflex disappears when an infant is approximately 12 monthsHow are adaptive reflexes related to brain development and motor skillsIt is widely believed that infants are equipped with adaptive reflexes at birth to enable them to perform crucial motor skills which they would otherwise be incapable of performing due to insufficient brain development What aspects of brain development are well developed and poorly developed at birthA brief summary of brain development in infancy
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