lifespan ch 4

the sequence in which the earliest growth always occurs at the top of the head. physical growth and differentiation of features work their way down from the top to bottom. the same patter is found in the head

_____ development generally proceeds according to the cephalocaudal

the sequence in which growth starts at the center of the body and moved toward the extremities. for example an infant controls the muscles of their trunk and arms before they control their hands and fingers

avg amount of neurons at birth

at birth the newborns brain is about ___ percent of its adult weight

by a infants 2nd birthday the brain is about ___ percent of its adult weight

involved in voluntary movement, thinking, personality, and intentionality or purpose

function in vision

have an active role in hearing, language processing, and memory

important in registering spatial location, attention, and motor control

the brain has the ability to rewire the brain, it reorganizes and assigns different places to take over normal functions

the typical newborn sleeps approximately __ hours a day

by the time we reach adulthood we spend about ___ of our sleep in rem sleep

rem sleep in adults usually occurs ___ hour after non-rem sleep

____ of an infants sleep is in rem rather then non rem

infants usually begin their sleep cycle in __

a condition that occurs when an infant stops breathing, usually during the night, and suddenly dies without an apparent cause

a wasting away of body tissues in the infants first year, caused by severe protein calorie deficiency

a condition caused by severe protein deficiency in which the childs abdomen and feet become swollen with water. b/t 1-3 years

built in reaction that occurs when an infants cheek is stroked or the side of the mouth is touched. the infant turns its head to find something to suck

automatically sucking an object placed in its mouth. enables the infant to get nourishment before he or she has associated a nipple with food

a neonatal state that occurs in a reaction to a sudden, intense noise or movement. when startled the baby arches its back, throws its head back, and flings out its arms and legs.

neonatal reflex that occurs when something touches the infants palms. the infant responds by grasping tightly

first 4 motor milestones

second 4 milestones

last 3 milestones

motor skills that involve more finely tuned movements such as finger dexterity

movements involving large muscle activity

the product of the interaction between information and the sensory receptors- the eyes, ears, tongue, nostrils, and skin

the interpretation of what is sensed

the ability to relate and integrate information from two or more sensory modalities, such as vision and hearing.