Chapter 11 Flashcards
Developmental Psychology
The study of continuity and change across the life span
Zygote
A fertilized egg that contains chromosomes from both an egg and a sperm
Germinal Stage
The 2 week period of natal development that begins at conception
Embryonic Stage
The period of prenatal development that lasts from the 2nd week until about the 8th week
Fetal Stage
A period that lasts from about the 9th week after conception until birth
-has a skeleton and muscles that make it capable of movement
Myelination
The formation of a fatty sheath around the axons of a neuron
-starts during the fetal stage but does not end until adulthood
Teratogens
Any substance that passes from mother to unborn child and impair development
- mercury in fish
- lead in water
- paint dust in air
- *most common = fetal alcohol syndrome
Fetal Alchohol Syndrome (FAS)
A developmental disorder that stems from heavy alcohol use by the mother during pregnancy
- brain abnormalities
- cognitive deficits
Infancy
The stage of development that begins at birth and lasts between 18 and 24 months
Motor Development
The emergence of the ability to execute physical action
-reaching, crawling, walking
Motor Reflexes
Specific motor responses that are triggered by specific patterns of sensory stimulation
-sucking reflex -> suck when something approaches their mouth
Cephalocaudal Rule
The “top to bottom” rule that describes the tendency for motor skills to emerge in sequence from head to feet
Proximodistal Rule
The “inside to outside” rule that describes the tendency for motor skills to emerge in sequence from the center to periphery
Cognitive Development
Is the process by which infants and children gain the ability to think and understand
Cognitive Development occurs in 4 discrete stages
Sensorimotor stage (Birth - 2)
Preoperational Stage (2-6)
Concrete Operational Stage (6-11)
Formal Operational Stage (11 and up)