chapter 9 voluntary movements of infancy Flashcards
what happens with the infant reflexes
dissapear
action of the brain
brain´s cortex inhibits reflexes from the lower brain area
voluntary movements
rudimentary movements (basic motor skills)
categories of voluntary movements
stability
locomotion
manipulation
stability
from head control to maintaining posture
exp. for stability
head control
body control
upright posture
standing
exp body control
rolling
exp. upright postue
sitting
standing
when does a child develop object manipulation
after 7/8 months
with learning how to sit without support
locomotion movement
prone(liegend) locomotion
crawling, creeping
one of the greatest accomplishments of infancy
walking
upright locomotion
7-12 months
influential in other developmental processes (speaking development)
stair climing
upright locomotion
13 months most able to ascend and half able to descend
90% learn descent after ascent
manipulation
important for exploration, discovery and achieving goals
reaching and grasping
manipulation phase I
reaching and grasping occurs at the same time
visually initiated
not visually controlled
child not capable to correct the error during reaching
manipulation phase II
wrist, hand finger/thumb control
pincer (schwere) like movement
visually guided reaching