developmental psychology
branch of psych that studies physical, cognitive, and social change throughout life span
zygote
fertilized egg; enters 2-wk period of rapid cell division and develops into embryo
embryo
developing human organism from ab 2 wks after fertilization through 2nd month
teratogens
agents like chemicals and viruses that can reach embryo or fetus during prenatal development and cause harm
Fetal Alcohol Syndrome
physical and cognitive abnormalities in children caused by pregnant woman’s heavy drinking. In severe cases, symptoms include noticeable facial misproportions
rooting reflex
baby’s tendency when touched on the cheek to turn towards the touch, open mouth, and search for nipple
habituation
decreasing responsiveness w/ repeated stimulation. As infants gain familiarity with repeated exposure to visual stimulus, their interest wanes and they look away sooner
maturation
biological growth processes that enable orderly changes in behavior, relatively uninfluenced by experience
adolescence
transition period from childhood to adulthood, extending from puberty to independence
puberty
period of sexual maturation, during which person becomes capable of reproducing
primary sexual characteristics
body structures (ovaries, testes, external genitalia) that make sexual reproduction possible
secondary sexual characteristics
nonreproductive sexual characteristics, such as female breasts and hips, male voice quality, and body hair
menarche
first menstrual period
menopause
time of natural cessation of menstruation; also refers to biological changes a woman experiences as her ability to reproduce declines
Alzheimer’s Disease
progressive and irreversible brain disorder characterized by gradual deterioration of memory, reasoning, language, and physical functioning (loss of brain cells and neurons that produce acetylcholine)
stranger anxiety
fear of strangers that infants commonly display, beginning by about 8 months of age
attachment
emotional tie with another person; shown in young children by their seeking closeness to the caregiver and showing distress on separation
Harry & Margaret Harlow
conducted studies on attachment using infant monkeys; investigated importance of contact comfort in development of social bonds
critical period
optimal period shortly after birth when organism’s exposure to certain stimuli or experiences produces proper development
Konrad Lorenz
studied imprinting through ducklings; animals imprint best to their own species but can imprint to other moving objects too
imprinting
process by which certain animals (not humans) form attachments during critical period very early in life
Mary Ainsworth
studied attachment differences by observing mother-infant pairs at home during 1st 6 months; parenting style/responsiveness determined child’s attachment style
basic trust
according to Erik Erikson, a sense that the world is predictable and trustworthy; said to be formed during infancy by appropriate experiences with responsible caregivers
self-concept
sense of one’s identity and personal worth
authoritarian parenting
demand obedience to parental authority. leads to unhappy, low self-esteem, children who keep to themselves
permissive parenting
don’t impose rules/standards, prefer to let kids regulate themselves. leads to impulsive children who disregard rules and may perform poorly in school
authoritative parenting
set high standards, nurturing, responsive, respect child’s autonomy. leads to capable, self-assured, socially popular children
Erik Erikson
theorized that proposed psychosocial development as series of 8 stages in which major challenges must be confronted
identity
one’s sense of self; according to Erikson, the adolescent’s task is to solidify a sense of self by testing and integrating
emerging adulthood
intimacy vs isolation stage; young adults struggle to form close relationships and gain capacity for intimate love or feel socially isolated while not completely taking on adult-level responsibilities or independence
social clock
culturally preferred timing of social events such as marriage, parenthood, and retirement
intimacy/love
the ability to form close, loving relationships; primary developmental task in late adolescence and early adulthood
generativity/work
contributing to the world through creativity in family/work
schemas
concept or framework that organizes and interprets info
assimilate
interpreting one’s new experience in terms of one’s existing schemas
accommodate
adapting one’s current understandings (schemas) to incorporate new info
conservation
principle (Piaget believed to be part of concrete operational reasoning) that properties such as mass, volume, and number remain the same despite changes in forms of objects
egocentrism
in Piaget’s theory, preoperational child’s difficulty taking another’s POV
theory of mind
people’s ideas about their own and others’ mental states – about their feelings, perceptions, and thoughts and the behavior these might predict
crystallized intelligence
one’s accumulated knowledge and verbal skills; tends to increase w/ age
fluid intelligence
one’s ability to reason speedily and abstractly; tends to decrease during late adulthood
Jean Piaget
theorized that one can only reach full human intelligence after going through all 4 stages of cognitive development (ages vary)
sensorimotor stage
age 0-2, develop through experience and movement our 5 senses, realization of object permanence, egocentric
object permanence
understanding that objects continue to exist even when not seen
preoperational stage
age 2-7, thinking is categorized for symbolic functions and intuitive thoughts; can’t perform specific cognitive functions but ask lots of questions and play pretend to learn new experiences
concrete operational stage
age 7-11, discover logic and concrete cognitive operations such as sorting, math, inductive reasoning, and concept of conservation; less egocentric and learn empathy
formal operational stage
age 12+, have ability to think more rationally about abstract concepts and hypothetical events, deeper understanding of own identity and morality, learn deductive reasoning
Lev Vygotsky
disagreed w/ Piaget’s stages, argued that community and language play central part in learning, inner speech develops from external speech (conversation)
socialcultural theory
Vygotsky’s theory that children develop independently of stages as result of social interactions in zone of proximal development
Lawrence Kohlberg
6 stages of moral development from personal gain to universal ethical principles; structured in 3 levels (pre-conventional, conventional, post-conventional)
preconventional stage
morality judged by direct consequences expected for yourself and not by social norms
conventional morality
centered around what society regards as right/wrong
postconventional morality
know rules inconsistent w/ ppl’s own moralities may be disobeyed, commitment to universal ethical ideas regardless of what society says
Carol Gilligan
proposed that females tend to emphasize caring, relationships, and empathy in their moral reasoning, while men lean towards principles of justice and individual rights. Disagreed w/ Kohlberg’s male-centric perspective