Ch.11 Flashcards
Germinal Stage
First 2 weeks of pregnancy
Fetal stage
8-9 weeks until birth
Embryonic Stage
2nd week of pregnancy until aboth the 8th week
Myelination
the formation of a fatty sheath around the axons of a neuron during pregnancy
Teratogen
and substance that passes from mother to unborn child that impairs development
infancy
begins at birth and lasts between 18 - 24 months
motor development
progression of muscle cordination needed for physical activitys
motor reflexes
motor responses triggered by specific patterns of sensory stimulation
cephalocaudal rule
the top to bottom rule for motor skills to emerge
proximodistal rule
the inside to outside rule for motor skills to emerge
cognitive development
the process By which infants and children gain the ability to think and understand
sensorimotor stage
A stage of cognitive development that begins at birth and last through infancy during which infants acquire information about the world by sensing it and moving around within it
schemas
theories about the way the world works
assimilation
the process by which infants apply their schemas in novel situations
accommodation
the process by which infants revise their schemas in light of new information
Object permanence
The fact that objects continue to exist even when they are not visible
three things stage theories assume 
- we progress through stages in order
- stages are related to age
- there are major breaks between stages
piagets four stages of cognitive development
- sensormotor
- preoperational
- concrete operational
- formal operational
eriksons theory of psychosocial development
8 stages
each stage has a physyco crisis
tug of war
childhood
begins around 18-24 moths to 11-14 years