developmental psychology
a branch of psychology that studies physical
maturation
biological growth processes that enable orderly changes in behavior
cognition
all the mental activities associated with thinking
sensorimotor stage
in Piaget's theory
object permanence
the awareness that things continue to exist even when not perceived.
preoperational stage
in Piaget's theory
conservation
the principle (which Piaget believed to be a part of concrete operational reasoning) that properties such as mass
egocentrism
in Piaget's theory
concrete operational stage
in Piaget's theory the stage of cognitive development (from about 6 or 7 to 11 years of age) during which children gain the mental operations that enable them to think logically about concrete events.
formal operational stage
in Piaget's theory
attachment
an emotional tie with another person
shown in young children by their seeking closeness to the caregiver and showing distress on separation.
imprinting
the process by which certain animals form attachments during a critical period very early in life.
temperament
a person's characteristic emotional reactivity and intensity.
adolescence
the transition period from childhood to adulthood
puberty
the period of sexual maturation
identity v. role confusion
teenagers work at refining a sense of self by testing roles and then integrating them to form a single identity
pre-conventional stage of morality
"I hope I'm doing this right. I don't want to disappoint my teacher"
conventional stage of morality
"I just want to get through this speech without having anyone ask me questions."
post-conventional stage of morality
"My new approach to distributing food could end world hunger."
Lawrence Kohlberg
moral development
presented boys moral dilemmas and studied their responses and reasoning processes in making moral decisions. Most famous moral dilemma is "Heinz" who has an ill wife and cannot afford the medication. Should he steal the medication and why?
Jean Piaget
1896-1980
Field: cognition
Contributions: created a 4-stage theory of cognitive development
said that two basic processes work in tandem to achieve cognitive growth (assimilation and accommodation)
identity crisis
distress and disorientation (especially in adolescence) resulting from conflicting pressures and uncertainty about and one's self and one's role in society
Diane Baumrind
Found that parents who use consistent parenting styles are most likely to have children who have the best social skills in elementary school.
Harry Harlow
1905-1981
Field: development
Contributions: realized that touch is preferred in development
Studies: Rhesus monkeys
studied attachment of infant monkeys (wire mothers v. cloth mothers)
secure attachment
Infants use the mother as a home base from which to explore when all is well
insecure attachment
Infants are wary of exploring the environment and resist or avoid the mother when she attempts to offer comfort or consolation
babbling
alternating vowel and consonant sounds that babies repeat with variations of intonation and pitch precede first words
telegraphic speech
1st stage of combining words pares down to essential words
Strange Situation
a behavioral test developed by Mary Ainsworth that is used to determine a child's attachment style
conservation tasks
Piaget changing the shape of a substance to see if the child can go beyond the way the substance visually appears to understand that the amount is still the same
authoritative parents
parenting style best high nurturing and discipline love clear family rules
authoritarian parents
parenting style parents provide plenty of rules but rank low on child-centeredness stress unquestionable obedience
neglecting parents
parenting style worst parents provide little discipline little nurturing or love
growth spurt
dramatic increase in height and weight that occurs during puberty
anorexia nervosa
life-threatening eating disorder pathological dieting (severe weight loss) distorted body image
bulimia nervosa
eating disorder at least biweekly cycles of binging and purging obsessive attempt to lose weight
clique
small peer group (6 people) similar attitudes and activities
crowd
relatively large teenage peer group
identity statuses
Marcia's 4 categories of identity formation: diffusion
identity diffusion
status where person feels aimless or totally blocked
identity foreclosure
decides adult life path without any thought or active search
identity moratorium
identity status person actively searches various possibilities to find a truly solid adult life path mature style of constructing an identity
identity achievement
decides adult life path after searching out various options
crystallized intelligence
basic facet of intelligence knowledge base storehouse of accumulated information
ego integrity
Erikson: 8th stage elderly persons decide that their life missions have been fulfilled and therefore accept impending death
age discrimination
illegally laying off workers or failing to hire or promote them on the basis of age
dementia
general term for any illness that produces serious
Alzheimer's disease
age-related dementia characterized by neural atrophy and abnormal by-products of that atrophy (senile plaques and neurofibrillary tangles)
Ivan Pavlov
discovered classical conditioning
trained dogs to salivate at the ringing of a bell
classical conditioning
a type of automatic learning in which one learns to link two or more stimuli and anticipate events
unconditioned stimulus (UCS)
in classical conditioning
conditioned stimulus (CS)
in classical conditioning
B.F. Skinner
Behaviorist that developed the theory of operant conditioning by training pigeons and rats
positive punishment
The application of an aversive stimulus after a behavior to stop that behavior
negative reinforcement
Increasing behaviors by stopping or reducing negative stimuli
positive reinforcement
Increasing behaviors by presenting positive stimuli
primary reinforcer
an innately reinforcing stimulus