Chapter 11: Development Flashcards
Developmental Psychology
The study of continuity and change across the life span
Zygote
fertilized egg that contains chromosomes from both a sperm and an egg
Germinal Stage
2-week period that begins at conception
Embryonic Stage
A period that lasts from the second week until about the eighth week
Fetal Stage
a period that lasts from the ninth week until birth
Myelination
the formation of a fatty sheath around the axons of a neuron
Teratogens
Agents that damage the process of development
- Examples
- lead in water
- paint dust in air
- alcohol
Fetal Alcohol Syndrome
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 actions
- Such as reaching, grasping, crawling, and walking
Reflexes
Speciific patterns of motor response that are triggered by specific patterns sensory stimulation
Cephalocaudal Rule
motor skills to emerge in sequence from the head to the feet
- Top to bottom rule
- infants tend to gain control over their heads first, their arms and trunks next, and their legs last
Proximodistal Rule
the tendency for motor skills to emerge in sequence from the center to the periphery
- the inside to outside rule
- babies learn to control their knees, and they learn to control their elbows and knees before their hands and feet
Cognitive Development
the emergence of the ability to think and understand
- children must come to understand
- how the physical world works
- how their minds represent it, and how other minds represent it
Sensorimotor Stage
a stage of development that begins at birth and lasts through infancy
- infants at this stage use their ability to sense and their ability to move to acquire infromation about the world in which they live
Schemas
theories about ormodels of the way the world works
- infants construct these as they begin to live their lives
- having a prejudice is a schema
Assimilation
infants apply their schemas in novel situations
- tugging on a stuffed animal for it to come closer
- tugging on a actual animal will cause it to run away
- Adding new information to the prejudice is assimilation
Accommodation
Occurs when infants revise their schemas in light of new information
- realizing the prejudice is wrong and restructuring one’s opinion is accommodation
Object Permanence
the idea that objects continue to exist even when they are not visible
Childhood
the stage of development that begins at about 18 to 24 months and lasts util adolescence, which begins between 11 and 14 years