Psychology Chapter 11 Flashcards
Developental psychology
The study of continuity and change across the life span
Zygote
A fertilized egg that contains chromosomes from both a sperm and an egg
Germinal stage
The 2-week period of prenatal 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
The prenatal development that lasts from the 9th week until birth
Myelination
The formation of a fatty sheath around the axons of a neuron
Teratogens
Any substances that pass from mother to unborn child and impair development
Fetal alcohol syndrome (FAS)
A developmental disorder that stems from heavy alcohol use by the mother 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 action
Motor reflexes
Specific motor responses that are triggered by specific patterns of sensory stimulation
Cephalocaudal rule
The “top-to-bottom” rule that describes the tendency for motor skills to emerge in sequence from the head to the feet
Proximodistal rule
The “inside-to-outside” rule that describes the tendency for motor skills to emerge in sequence from the centre to the periphery
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 lasts through infancy, during which infants aquire information about the world by sensing it and moving around within it