SDS150R Lecture Notes - Lecture 4: Color Vision, Empiricism, Visual Acuity

• School: University of Waterloo
• Department: Social Development Studies
• Course: SDS150R
• Professor: Arshi Shaikh

Document Summary

Sds150r - lecture 4 - physical, sensory, and perceptual development in infancy. Develop rapidly during the first two years, midbrain and medulla are most fully developed at birth (regulate vital functions, attention, sleeping, etc. ) Least developed part of brain at birth = cortex, involved in perception, body movement, thinking, and language. Brain structure = made up of two basic types of cells (neurons and glial cells) Myelinization: process in neuronal development where sheaths made of a substance called myelin cover ind. axons and insulate them from one another improves conductivity of the nerve sequence of myelination follows cephalocaudal and proximodistal patterns. Most rapid during first 2 years after birth reticular formation: part of brain that regulates attention = takes longer to myenilize. Muscles: full complement of muscle present at birth, but fibres are small and have high ration of water to muscle and high proportion of fat. 1 year of age = water content and fat proportion equals to adult.