Developmental Psych - Modules 45, 47, 48, 49, & 53

developmental psychology

a branch of psychology that studies physical, cognitive, and social change throughout the life span

zygotes

the fertilized egg; enters a 2-week period of rapid cell division and develops into an embryo

embryo

developing human organism from about 2 weeks after fertilization through the second month

fetus

developing human organism from 9 weeks after conception to birth

teratogens

agents, such as chemical and viruses, that can reach the embryo or fetus during prenatal development and cause harm

fetal alcohol syndrome (FAS)

physical and cognitive abnormalities in children caused by a pregnant woman's heavy drinking. In severe cases, signs include a small, out-of-proportion head and abnormal facial features

habituation

decreasing responsiveness with repeated stimulation. As infants gain familiarity with repeated exposure to a stimulus, their interest wanes and they look away sooner.

cognition

all the mental activities associated with thinking, knowing, remembering, and communicating

schemas

a concept or framework that organizes and interprets information

assimilation

interpreting our new experiences in terms of our existing schemas

accommodation

adapting our current understandings to incorporate new information

Piaget's theory of cognitive development

A theory made up of sensorimotor period, preoperational period, concrete operations, and formal operations

sensorimotor stage

in Piaget's theory, the stage (from birth to nearly 2 years of age) 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 perceived

preoperational stage

in Piaget's theory, the stage (from about 2 to 6 or 7 years of age) during which a child learns to use language but does not yet comprehend the mental operations of concrete logic

conservation

the principle that properties such as mass, volume, and number remain the same despite changes in the forms of objects

egocentrism

in Piaget's theory, the preoperational child's difficulty taking another's point of view

theory of mind

people's ideas about their own and others' mental states—about their feelings, perceptions, and thoughts, and the behaviors these might predict

concrete operational stage

in Piaget's theory, the stage of cognitive development (from about 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, the stage of cognitive development (normally beginning about age 12) during which people begin to think logically about abstract concepts

Lev Vygotsky

emphasized the social aspects of learning and stressed that children develop intellectually through mentor relationships

Zone of Proximal Development

Zone of Proximal Development

concept that there is an ideal "sweet spot" for learning a skill. There is an ideal time to teach a child -- when the task is neither too easy nor too hard

scaffold

a framework that offers children temporary support as they develop higher levels of thinking

autism spectrum disorder (ASD)

a disorder that appears in childhood and is marked by significant deficiencies in communication and social interaction, and by rigidly fixated interests and repetitive behaviors

stranger anxiety

the fear of strangers that infants commonly display, beginning by about 8 months of age

attachment

an emotional tie with another person; shown in young children by their seeking closeness to their caregiver and showing distress on separation

Parent-infant bond is a survival impulse

Harlow experiments

monkeys used to test the basis of a baby's bond with its mother

formed based on comfort rather than nourishment

critical period

an optimal period early in the life of an organism when exposure to certain stimuli or experiences produces normal development

imprinting

the process by which certain animals form strong attachments during early life

Kids do not imprint but they do become attached to what they know (mere exposure)

strange situation

a procedure for studying child-caregiver attachment; a child is placed in an unfamiliar environment while their caregiver leaves and then returns, and the child's reactions are observed

secure attachment

demonstrated by infants who comfortably explore environments in the presence of their caregiver, show only temporary distress when the caregiver leaves, and find comfort in the caregiver's return

insecure attachment

demonstrated by infants who display either a clinging, anxious attachment or an avoidant attachment that resists closeness

temperament

a person's characteristic emotional reactivity and intensity

Erikson's Psychosocial Development Theory

believed that development continues throughout life

each stage of life has a different crisis that one must solve

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 responsive caregivers

self-concept

all our thoughts and feelings about ourselves in answer to the question, "Who am I?

authoritarian parenting style

Coercive parenting style; impose rules and expect obedience

permissive parenting style

unrestraining parenting style; few demands, few limits, little punishment

negligent parenting style

uninvolved parenting style; neither demanding nor responsive

careless, inattentive, doesn't seek close relationships

authoritative parenting style

confrontive parenting; demanding and responsive

control by setting rules, encouraging open discussions, and allowing exceptions

sex

in psychology, the biologically influenced characteristics by which people define male and female

gender

in psychology, the socially influenced characteristics by which people define boy, girl, man, and woman

aggression

any physical or verbal behavior intended to harm someone physically or emotionally

relational aggression

an act of aggression (physical or verbal) intended to harm a person's relationship or social standing

role

a set of expectations (norms) about a social position, defining how those in the position ought to behave

gender role

a set of expected behaviors, attitudes, and traits for males or for females

gender identity

our sense of being male, female, or some combination of the two

social learning theory

the theory that we learn social behavior by observing and imitating and by being rewarded or punished

gender typing

the acquisition of a traditional masculine or feminine role

androgyny

displaying both traditional masculine and feminine psychological characteristics

transgender

an umbrella term describing people whose gender identity or expression differs from that associated with their birth-designated sex

Kohlberg's Theory of Moral Development

believes that moral development has six stages across three levels

morals being tied to self interest --> tied to personal ethics

X chromosome

the sex chromosome found in both males and females. Females typically have two X chromosomes; males typically have one. An X chromosome from each parent produces a female child

Y chromosome

the sex chromosome typically found only in males. When paired with an X chromosome from the mother, it produces a male child

testosterone

the most important male sex hormone. Both males and females have it, but the additional hormones in males stimulates the growth of the male sex organs during the fetal period, and the development of the male sex characteristics during puberty

primary sex characteristics

the body structures (ovaries, testes, and external genitalia) that make sexual reproduction possible

secondary sex characteristics

nonreproductive sexual traits, such as female breasts and hips, male voice quality, and body hair

spermarche

first ejaculation; first puberty landmark for boys

menarche

first menstrual period; first puberty landmark for girls

intersex

a condition present at birth due to unusual combinations of male and female chromosomes, hormones, and anatomy; possessing biological sexual characteristics of both sexes

AIDS (acquired immune deficiency syndrome)

a life-threatening, sexually transmitted infection caused by the human immunodeficiency virus (HIV). AIDS depletes the immune system, leaving the person vulnerable to infections

sexual orientation

our enduring sexual attraction, usually toward members of our own sex (homosexual orientation) or the other sex (heterosexual orientation); variations include attraction toward both sexes (bisexual orientation)