Chapter 10 Flashcards
developmental psychology
the study of continuity and change across the lifespan
zygote
a fertilized egg
germinal stage
2-week period of prenatal development that begins at conception
zygote divides
zygote migrates and attaches itself to the Fallopian tube; now it is an embryo
embryonic stage
stage of prenatal development that lasts from the 2nd week to about the 8th week
embryo continues to divide
cells differentiate
male embryos produce testosterone
at about 9 weeks, the embryo gets a new name:
fetus
fetal stage
period of prenatal development that lasts from the 9th week until birth
develop a layer of fat
digestive and respiratory systems mature
myelination starts
__% of a person’s brain development occurs outside the womb
75
teratogens
agents that impair development
fetal alcohol syndrome (FAS)
developmental disorder caused by heavy alcohol use during pregnancy
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 actions such as reaching, grasping, crawling, and walking
reflexes
specific patterns of motor response that are triggered by specific patterns of sensory stimulation
cephalocaudal rule
the tendency for motor behavior to emerge in sequence from the head to the feet
proximodistal rule
the tendency for motor behavior to emerge in sequence from the center to the periphery
cognitive development
the emergence of the ability to think and understand
sensorimotor stage (birth-2 years)
infant experiences world through movement and sense, develops schemas, begins to act intentionally, and shows evidence of understanding object permanence