PSY 2105 Lecture Notes - Lecture 5: Sudden Infant Death Syndrome, Protection Ring, Motor Skill

• School: University of Ottawa
• Department: Psychology
• Course: PSY 2105
• Professor: Stuart Hammond

Document Summary

Principles and sequences: proximodistal: literally, near to far. This principle of development refers to the tendency of body parts to develop in a trunk-to-extremities direction, the parts closest to the entre come in control first. In the first few weeks the infant can position himself toward an object but cannot reach it. This principle of development refers to the tendency of body parts to mature in a head-to-foot progression. Turns head to side when lying on stomach; poor head control when lifted; alternating movements of legs when on stomach as if to crawl. Head erect and steady when held vertically; when on stomach, elevates head and shoulders by arms or hands or elbows; sits with support; anticipates adjustment of lifting. Sits alone momentarily, pulls self to sitting position with adult"s hand as puller; rolls from back to stomach. Sit alone; pulls self to sitting position in crib; makes forward progress in prone position toward toy; walks holding on to furniture.