FMST 210 Chapter Notes - Chapter 4: Primitive Reflexes, Reticular Formation, Anomie Belle
Document Summary
Physical changes: the brain and nervous system. The reproductive system is fully formed at birth but doesn"t grow or change much until puberty: at birth, the midbrain and the medulla are the most fully developed. The sequence of myelination follows both cephalocaudal and proximodistal patterns (top to bottom, centre to extremities) E. g. areas associated w lifting will be developed before detailed motor skills like pinching. A- reticular formation is the brain structure primarily regulating the skill of attention. B- the myelination of the reticular formation begins in infancy and is completed in a person"s mid-20"s: reflexes and behavioural states. Reflexes: a- adaptive reflexes such as withdrawal from a painful stimulus and opening and closing of the pupil of the eye in response to variations in brightness persist throughout the entire lifespan. B- primitive reflexes is controlled by the medulla and the midbrain.
