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Environment
Every nongenetic influence, from prenatal nutrition to the people & things around us
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Sperm & Egg Cells
- Sperm cells come from males
- Egg cells come from females
- Nucleus of each of these cells contain the genetic master code for your entire body
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Genes
- The biochemical units of heredity that make up the chromosomes
- A segment of DNA capable of synthesizing a protein
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Genome
- The complete instructions for making an organism, consisting of all the genetic material in that organisms chromosomes
- 20,000 - 25,000 genes
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Temperament
A person's characteristic emotional reactivity & intensity
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Pruning
- Refers to neurological regulatory processes, which facilitate a change
- in neural structure by reducing the overall number of neurons and
- synapses, leaving more efficient synaptic configurations
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Norms
- An understood rule for accepted & expected behavior
- Norms prescribe "proper" behavior
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Gender Roles
A set of expected behaviors for males & females
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Gender Typing
The acquisition of a traditional masculine or feminine role
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Testosterone
- Principal male hormone
- The male's greater testosterone output starts the development of external male sex organs at about the 7th week of fetal development
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Evolutionary Perspective - Sex
Women's approach to sex is more relational & men's more recreational
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Heritability
- The proportion of variation among individuals that we can attribute to genes
- The heritability of a trait may vary, depending on the range of populations & environments studied
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Culture
The enduring behaviors, ideas, attitudes, values, & traditions shared by a group of people & transmitted from one generation to the next
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Stages of Prenatal Development
- 1. Zygote - conception to 2 weeks
- 2. Embryo - 2 weeks through 8 weeks
- 3. Fetus - 9 weeks to birth
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Teratogens
Agents, such as chemicals & viruses, that can reach the embryo or fetus during prenatal development & cause harm
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Habituation
- Decreasing responsiveness with repeated stimulations
- As infants gain familiarity with repeated exposure to a visual stimulus, their interest wanes & they look away sooner
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Infantile Amnesia
Brain systems required to encode & retrieve specific events are not adequately developed to support long term memory before age 3
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Schema
A concept or framework that organizes & interprets information
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Assimilation & Accommodation
- Assimilation - interpreting our new experiences in terms of our existing schemas
- Accommodation - adapting our current understandings (schemas) to incorporate new information
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Object Permanence
The awareness that things continue to exist even when not perceived
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Conservation
The principle that properties such as mass, volume, & number remains the same despite changes in the forms of objects
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Egocentrism
In Piaget's theory, the preoperational child's difficulty taking another's point of view
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Theory of Mind
People's ideas about their own & other's mental states - about their feeling, perceptions, & thoughts, & the behaviors these might predict
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Erikson's Stages of Development
- 1. Trust vs. Mistrust - infancy to 1 year; if needs are dependably met, infants develop a sense of basic trust
- 2. Autonomy vs. Shame & Doubt - toddlerhood, 1 - 3 years; toddlers learn to exercise their will & do things for themselves, or they doubt their abilities
- 3. Initiative vs. Guilt - preschool, 3 - 6 years; preschoolers learn to initiate tasks & carry out plans, or they feel guilty about their efforts to be independent
- 4. Competence vs. Inferiority - elementary school, 6 years - puberty; children learn the pleasure of applying themselves to tasks, or they feel inferior
- 5. Identity vs. Role Confusion - adolescence, teen years into 20s; teenagers work at refining a sense of self by testing roles & then integrating them to form a single identity, or they become confused about who they are
- 6. Intimacy vs. Isolation - young adulthood, 20s to early 40s; young adults struggle to form close relationships & to gain the capacity for intimate love, or they feel socially isolated
- 7. Generativity vs. Stagnation - middle adulthood, 40s to 60s; in middle age, people discover a sense of contributing to the world usually through family & work, or they may feel a lack of purpose
- 8. Integrity vs. Despair - late adulthood, late 60s & up; reflecting on his or her life, an older adult may feel a sense of satisfaction or failure
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Parenting Styles
- Authoritarian Parents - impose rules & expect obedience; Ex: don't stay out too late or you'll be grounded
- Permissive Parents - parents submit to their children's desires; they make few demands & use little punishment
- Authoritative Parents - parents are both demanding & responsive; they exert control by setting rules & enforcing them, but they also explain the reasons for the rules & encourage open discussion when making the rules & allow exceptions
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Secure/Insecure Attachment
- Secure = in their mother's presence infants play comfortably, happily exploring their new environment; when she leaves they become distressed; when she returns, the seek contact with her
- Insecure = infants avoiding attachment marked either by anxiety or avoidance of trusting relationships
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Primary & Secondary Sex Characteristics
- Primary = the body structures (ovaries, testes, & external genitalia) that make sexual reproduction possible
- Secondary = non-reproductive sexual characteristics, such as female breasts & hips, male voice quality, & body hair
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Frontal Lobe Development
- Most rapid growth from ages 3 to 6
- Enable rational planning
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Kohlberg's Stages of Moral Development
- 1. Preconventional Morality = before age 9; focus is self-interest; obey rules to avoid punishment or gain concrete awards; Ex: if you save your wife, you'll be a hero
- 2. Conventional Morality = early adolescence; focus is to uphold laws & rules to gain social approval or maintain social order; Ex: if you steal the drug, everyone will think you're a criminal
- 3. Postconventional Morality = adolescence & beyond; focus is actions reflect belief in basic rights & self-denied ethical principles
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Telomeres
- Tips of chromosomes that wear down with age; this wear is accentuated by smoking, obesity, or stress
- As they shorten, aging cells may die without being replaced with perfect genetic replicas
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Longitudinal & Cross-Sectional
- Longitudinal = research in which the same people are restudied & retested over a long period
- Cross-Sectional = studies in which people of different ages are compared with one another
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Crystallized and Fluid Intelligence
- Crystallized = our accumulated knowledge & verbal skills; tends to increase with age
- Fluid = our ability to reason speedily & abstractly; tends to decrease during late adulthood
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Pavlov's Experiment
- Neutral Stimulus = a stimulus that elicits no response before conditioning
- Unconditioned Stimulus = a stimulus that unconditionally - naturally & automatically - triggers a response
- Unconditioned Response = an unlearned, naturally occurring response (such as salivation) to an unconditioned stimulus (such as food in the mouth)
- Conditioned Stimulus = an originally irrelevant stimulus that, after associateion with an unconditioned stimulus, comes to trigger a conditioned response
- Conditioned Response = a learned response to a previously neutral (but now conditioned) stimulus
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Extinction
- The diminishing of a conditioned response
- Occurs in classical conditioning when an unconditional stimulus does not follow a conditioned stimulus
- Occurs in operant conditioning when response is no longer reinforced
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Spontaneous Recovery
The reappearance, after a pause, of an extinguished conditioned response
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Generalization
The tendency, once a response has been conditioned, for stimuli similar to the conditioned stimulus to elicit similar responses
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Discrimination
In classical conditioning, the learned ability to distinguish between a conditioned stimulus & stimuli that do not signal an unconditioned stimulus
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Operant Conditioning
A type of learning in which behavior is strengthened if followed by a reinforcer or diminished if followed by a punisher
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Reinforcement Schedules
A pattern that defines how often a desired response will be reinforcded
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Law Of Effect
Thorndike's principle that behaviors followed by favorable consequences become more likely, & that behaviors followed by unfavorable consequences become less likely
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Negative Reinforcement
- Increasing behaviors by stopping or reducing negative stimuli which is any stimulus that, when removed after a response, strengthens the response
- Not punishment
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Classical Conditioning
- A type of learning in which one learns to link two or more stimuli & anticipate events
- Ex: Pavlov's dog
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Intrinsic & Extrinsic Motivation
- Intrinsic = a desire to perform a behavior effectively for its own sake
- Extrinsic = a desire to perform a behavior to receive promised rewards or avoid threatened punishment
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Modeling
- Process of observing & imitating a specific behavior
- Ex: learning our native language
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Shaping
An operant conditioning procedure in which reinforcers guide behavior toward closer & closer approximations of the desired behavior
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Observational Learning
- Learning by observing others
- Learn without direct experience by watching & imitating others
- Ex: know not to touch a hot oven by watching someone else burn themselves on it
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Essay
Evolutionary Perspective - Sex
- Women's approach to sex is usually more relational & men's more recreational
- Nature selects behaviors that increase the likelihood of sending one's genes into the future
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Essay
Individualist/Collectivist Cultures
- Individualist:
- Self = independent (identity from individual traits)
- Life Task = discover & express one's uniqueness
- What Matters = me - personal achievement & fulfillment, rights & liberties, self-esteem
- Coping Method = change reality
- Morality = defined by individuals (self-based)
- Relationships = many, often temporary or casual; confrontation acceptable
- Attributing Behavior = behavior reflects one's personality & attitudes
- Collectivist:
- Self = interdependent (identity from belonging)
- Life Task = maintain connections, fit in, perform role
- What Matters = us - group goals & solidarity; social responsibilities & relationships; family duty
- Coping Method = accommodate to reality
- Morality = defined by social networks (duty-based)
- Relationships = few, close & enduring; harmony valued
- Attributing Behavior = behavior reflects social norms & roles
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Essay
Attachment
- An emotional tie with another person
- Shown in young children by their seeking closeness to the caregiver & showing distress on separation
- Secure & Insecure
- Infants become attached to those - typically their parents - who are comfortable & familiar
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Essay
Parenting Styles
- Authoritarian Parents
- Permissive Parents
- Authoritative Parents
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Essay
Kohlberg & Erikson's Stages
- Kohlberg:
- Preconventional Morality
- Conventional Morality
- Postconventional Morality
- Erikson:
- Infancy
- Toddlerhood
- preschool
- Elementary School
- Adolescence
- Young Adulthood
- Middle Adulthood
- Late Adulthood
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Essay
Modeling
- The process of observing & imitating a specific behavior
- Observational learning
- How we learn our native languages & various other specific behaviors by observing & imitating others
- Mirror Neurons = frontal lobe neurons that some scientists believe fire when performing certain actions or when observing another doing so; the brain's mirroring of another's action may enable imitation & empathy
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