developmental psychology
a branch of psychology that studies physical, cognitive, and social change throughout the life span
zygote
the fertilized egg; enters a 2-week period of rapid cell division and develops into an embryo
embryo
the developing human organism from 2 weeks after fertilization through the second month
fetus
the developing human organism from 9 weeks after conception to birth
teratogens
agents (chemicals/viruses) that can reach the embryo/fetus during prenatal development and cause harm
fetal alcohol syndrome (FAS)
physical/cognitive abnormalities in children caused by a pregnant women’s heavy drinking
habituation
as infants gain familiarity with repeated exposure to a stimulus, interest decreases and they look away sooner
maturation
biological growth processes that enable orderly changes in behavior (uninfluenced by experience)
stranger anxiety
fear of strangers that infants commonly display
attachment
shown in young children by their seeking closeness to the caregiver and showing distress on seperation
critical period
optimal period early in the life of an organism when exposure to certain stimuli/experiences produces normal development
basic trust
a sense that the world is predictable/trustworthy; formed during infancy by experiences with responsive caregivers
imprinting
process by which certain animals form strong attachments during early life
self-concept
our thoughts/feelings about ourselves in answer to the question “who am i?”
authoritarian
parents are coercive, impose rules and expect obedience
permissive
parents are unrestraining and use little punishment
authoritative
parents are both demanding and responsive, set rules but encourage open discussion and allow exceptions
cognition
mental activities associated with thinking, knowing, remembering and communicating
schema
a concept or framework that organizes and interprets information
assimilation
interpreting our new experiences in terms of our existing schemas
accomodation
adapting our current understandings (schemas) to incorporate new information
sensorimotor stage
stage (birth to 2 years old) during which infants know the world mostly in terms of their sensory impressions and motor activities
object permanence
the awareness that things continue to exist even when not seen
preoperational stage
stage (2-7 years old) during which a child learns to use language but does not yet comprehend the mental operations of logic
egocentrism
the preoperational child’s difficulty taking another’s point of view
concrete-operational stage
stage of cognitive development (7-11 years old) during which children gain the mental operations that enable them to think logically about abstract concepts
conservation
principle that properties (mass, volume, number) remains the same despite changes in the forms of objects
theory of mind
people’s ideas about their own/others’ mental states
formal-operational stage
stage of cognitive development (12 years old) during which people begin to think logically about abstract concepts
scaffolding
process in which a more skilled learner gives help to a less skilled learner, reducing the amount of help as the less skilled learner becomes more capable
autism
developmental disorder that involves impairments in social interaction and communication, challenges with sensory processing, and repetitive behaviors
preconventional moral reasoning
morality is determined by consequences; rules are followed in order to avoid punishment or receive rewards
conventional moral reasoning
morality is determined by social rules; people make moral judgments based on the norms/expectations of their group
postconventional moral reasoning
morality is determined by core values; people make moral judgements based on what they believe is right
adolescence
transition period from childhood to adulthood
puberty
period of sexual maturation during which a person becomes capable of reproducing
primary sex characteristics
features directly involved in reproduction (ovaries, testes)
secondary sex characteristics
features not directly concerned with reproduction (facial hair, breast size)
identity
our sense of self
social identity
indicates who they are in terms of the groups to which they belong
intimacy
the ability to form close, loving relationships
emerging adulthood
period (18-25 years old) when many are no longer adolescents but have not yet achieved full independence as adults
menopause
time where menstruation naturally stops; refers to biological changes women experience as ability to reproduce declines
cross-sectional study
study in which people of different age groups are compared with one another
longitudinal study
research in which the same people are restudied/retested over a long period
social clock
the culturally preferred timing of social events (marriage, parenthood, retirement)
jean piaget
theorist associated with schema and cognitive development
harry and margaret harlow
theorists associated with attachment (monkeys)
konrad lorenz
theorist associated with imprinting in animals
mary ainsworth
theorist associated with attachment
erik erikson
theorist associated with stages of psychosocial development
lawrence kohlberg
theorist associated with levels of moral development
lev vygotsky
theorist associated with scaffolding/zone of proximal development
trust vs. mistrust
infant is uncertain about the world in which they live, and looks towards their primary caregiver for stability and consistency of care
autonomy vs. shame/doubt
the stage in which a child learns to be independent and make their own decisions in life (toddler)
initiative vs. guilt
preschoolers learn to initiate plans/ carry out tasks or they feel guilt about their efforts to be independent
competence vs. inferiority
child learns to be productive or becomes discouraged and feels inferior or incompetent
identity vs. role confusion
stage is characterized by the adolescent question of “Who am I,”; teens are conflicted with values/ideas of who they should be and what they should think
intimacy vs. isolation
young adults struggle to form close relationships/gain the capacity for intimate love or they feel isolated
generativity vs. stagnation
middle-aged people discover a sense of contributing to the world or they may feel a lack of purpose
integrity vs. despair
an older adult reflecting on their life, feeling either satisfaction or failure
androgyny
people who possess high levels of both masculine and feminine traits