unit 6 - developmental psychology Flashcards
developmental psychology
study of the physical, cognitive, and social changes throughout the lifespan
zygote
fertilized egg, lasts two weeks
embryo
developing human organism, begins at two weeks
fetus
developing human organism from 9 weeks after conception to birth
teratogens
agents that can reach the embryo during prenatal development and cause harm (ex. chemicals and viruses)
habituation
decreasing responsiveness with repeated stimulation (used to explore infants abilities)
maturation
biological growth processes that enable orderly changes in behavior
infantile amnesia
the inability to remember clearly or accurately the first years of life
jean piaget
developmental psychologist who created a theory that all humans progress through four cognitive developmental stages
schemas
a concept or mental image that provides a framework for understanding future experiences
assimilation
incorporating new information into our existing schemas without modification
accommodation
adjusting out schemas to fit the particulars of new experiences
piaget’s 4 stages of cognitive development
sensorimotor, preoperational, concrete operational, formal operational
sensorimotor stage
0-2 years, infants experience their world through their senses and motor activities. have object permanence
object permanence
awareness that objects continue to exist even when not perceived. begins at 8 months
preoperational stage
2-6/7 years, child learns to use language but does not yet comprehend the mental operations of concrete logic. lacks conservation, has egocentrism, and the theory of mind
conservation
the child doesn’t understand that properties such as mass, volume, and number remain the same even if the object’s form changes
egocentrism
inability to take another’s point of view
theory of mind
people’s ideas about their own and others’ mental stages
concrete operational stage
6/7-11 years, children gain the mental operations that enable them to think logically about concrete events