EAR-20 Lecture 18: EAR-20 - Day 18
Document Summary
During postnatal development, cartilage continues to be transformed into bone and bones elongate and increase in number to become scaffoldings to support the body in new physical orientations. Two complementary patterns are evident in the emergence of motor activity: differentiation: the enrichment of global and relatively diffuse actions with more refined and skilled ones, integration: the increasingly coordinated actions of muscles and sensory systems. Throughout infancy and childhood, motor skills become more efficient, coordinated, deliberate or automatic as the task requires. Towards the end of childhood, many skills become highly specialized talents. Jean piaget: sensorimotor activity was essential to understand, for it served as the prototype and first stage in the construction of knowledge. Infants enter their new world with surprisingly skillful abilities, among them a set of reflexes. Reflex: involuntary reaction to touch, light, sound and other kinds of stimulation (such as sucking) are inhibited prenatally.
