what is the definition of developmental psychology
scientific study of human development and how we stay the same
longitudinal vs. cross-sectional research
longitudinal: study one group of people for a long period of time
cross-sectional: study different groups of people at the same time
what are the 5 major questions of developmental psychology
continuity vs. stages
critical/sensitive periods
stability vs. change
–> do traits from childhood continue
impact of early experience
nature vs. nurture
what is the gestation period and its stages
duration of pregnancy
–> babies can be born full-term (on time), premature/pre-term, or post-term
STAGES: germinal, embryonic, fetal
describe the germinal stage
10 DAYS - 2 WEEKS
what is an ectopic pregnancy
mono vs. dizygotic twins
mono: 1 egg, 1 sperm –> splits into 2
–> always same sex, 100% similar
di: 2 eggs, 2 sperm
–> 50% similar
describe the embryonic stage
3 - 8 WEEKS
describe the fetal stage
9 WEEKS - BIRTH
sulci vs. gyri
sulci = grooves
gyri = bumps
of brain
what are teratogens
environmental agents that contribute negatively to the development of an embryo
when do teratogens exert their most negative effects
EMBRYO period
describe alcohol as a teratogen
what is a schema
a mental representation of something or someone
–> affect the way we think, feel, behave
assimilation vs. accomadation vs. equilibration (schemas)
assimilation: absorb new information into our existing schema without modifying it
accommodation: change our schema or create a new one to absorb new information
equilibration: when the content of our schema and the real world match
DISequilibration: content of our schema and real world do not match –> want to restore balance
–> can create/modify schema or twist information to make it fit
what are the 4 stages of piaget’s cognitive development
what constitutes the sensorymotor stage (piaget)
what consistutes the preoperational stage (piaget)
what constitutes the concrete opertational stage
what consistutes the formal operational stage
who was lev vigotsky and what did he do
SOCIOCULTURAL THEORY
who was john bowlby and what did he do
what consistutes psychological security
safe haven: ideally the attachment figure is a safe haven where infants go to get their needs met
secure base: the place from which we go explore the world and come back to
secure vs. insecure attachment
SECURE: linked to positive consequences
–> baby learns the world is a safe space and they can get their needs met
INSECURE: linked to negative consequences
–> learns the world is unsafe and caregiver is unreliable