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AP Review . Chapter 1 , 2, & 3. Chapter 1: Terms. Structuralism Functionalism Behaviorism Evolutionary Nature v. Nurture Gestalt Psychology Psychoanalysis Humanist Cognition Biological Sociocultural Behavorial Genetics. Ethnocentrism Dualism Rene Descartes John Locke
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AP Review Chapter 1, 2, & 3
Chapter 1: Terms • Structuralism • Functionalism • Behaviorism • Evolutionary Nature v. Nurture • Gestalt Psychology • Psychoanalysis • Humanist • Cognition • Biological • Sociocultural • BehavorialGenetics • Ethnocentrism • Dualism • Rene Descartes • John Locke • Empiricism • Thomas Hobbes
7 major fields • Developmental – human development (mostly children) • Social – attitudes, prejudice, conformity, attraction • Experimental – sensation, perception, learning, conditioning, motivation, emotion • Physiological – genetics, brain, nervous system, endocrine system • Cognitive – mental processes, memory, reasoning, language, problem solving • Personality – what shapes our personality • Psychometrics – measurement of behavior, capacities through test, designing test, look for new data
Focus of professional practice • Clinical – Evaluation, diagnosis, treatment of disorders • Counseling – Overlaps clinical, work usually with people suffering moderate severity • Educational & School – improve curriculum design, achievement testing, work in schools aiding students • Industrial & Organizational – HR department, improve staff moral, productivity
Structuralism • Smallest possible elements of the mind • Understand all the parts = understanding structure of the mind • Examples: • Patient shown picture, listen to sounds and record thoughts (Sensation, feelings, images) • People: Edward Titchener (student of Wundt)
Functionalism • Influenced by Darwin (Natural Selection) • How people adapt to the world around them (Survival/reproduction advantage) • “Stream of consciousness” • Looks at function/ purpose of consciousness rather than structure (leads to behaviorism) • People: William James
Behavioral (Stimulus – Response Psychology • Study observable behavior, mind and mental events unimportant (why?) • Can not study consciousness • Scientific Method rests on verifiability • People: Ivan Pavlov (Classical Conditioning – dog), John Watson (Classical Conditioning – Little Albert), B.F. Skinner (Operant Conditioning – Skinner Box)
Evolutionary Nature vs. Nurture • Nature (genetic) vs. Nurture (Environment/Experience) • Watson argued environment played large role • Could specialize any child in any profession
Gestalt Psychology • Concerned with perception of conscious experience. • How we experience the world rather than how we felt • The whole of an experience can be more than the sum of its parts • Law of Closure – group items together see whole (3/4 circle – we fill in the gap) • Law of Pragnanz – organize, reduce to simplest form • Law of Proximity – Objects near each other we group • Law of Similiarty – group items that are similar together • Law of Continuity – Lines seen following smooth path
Psychoanalysis/Psychodynamic • Unconscious – thoughts below surface of awareness • Explains personality, motivation, mental disorders through unconscious • You are not the master of your own mind • Repressed thoughts • People: Sigmund Freud, Carl Jung, Alfred Adler
Humanist • Humans are unique and free in will (different from animals) • Optimistic about human nature • People: Abraham Maslow (Self-Actualization – reach full potential), Carl Rogers (Unconditional Positive Regard – positive self concept in attaining self actualization)
Cognitive • Thinking or conscious experience • Combines Structuralist (look at subcomponents of thought) and functionalist (understand purpose of thought) • People: Jean Piaget, Noam Chomsky
Biological • Looks at interaction of anatomy and physiology (Nervous system) and behavior • Example: look at what part of the brain is at work during a task
Sociocultural • Environment person lives in has great influence on how we behave. • Cultural values vary from society to society
Behavorial Genetics • Certain behaviors happen due to genetically-based psychological characteristics • Looks at Biological/ environmental effects on trait • Example: What extent does risk taking behavior in teens have to do with genetics
Ethnocentrism • Ones own ethnicity superior to others • Fear of cultural comparisons may have lead to ethnocentrism so many psychologist focused on middle class whites
Dualism • Divides the world and all things in it into two parts: • Body • Spirit • Questions the Greeks pondered
Rene Descartes • “I Think Therefore I am” • Mind controls the body • Physical world is not under divine influence rather followed by a set of observable laws/rules • The world and all creatures are like machines behavior is predictable • Humans exception = mind (not observable, not subject to natural laws) • Reflex – not controlled by the mind rather an unconscious reaction to environmental event
John Lock • Empiricism – acquisition of truth through observations and experiences • Humans born knowing nothing (“blank slate”), nothing is innate it is all learned • Nurture over nature in development
Thomas Hobbes • Materialism – only things that exist are matter and energy • What we experience as consciousness is simply by-product of machinery of the brain
Subfields in Psychology • Applied Psychology – everyday practical problems • Clinical Psychology – Diagnosis treatment
Scientific Method • Independent Variable • Dependent Variable • Extraneous Variable • Confounding of Variables • Mean/Median/Mode • Standard Deviation • Correlational coefficient • Sampling Bias • Placebo effect • Experimenter Bias • Double blind • Single blind
Scientific Method • IV – Manipulated variable (change) • DV – what’s measured • Extraneous Variable – Something not apart of the experiment that effects the results • Confounding of Variables - anything that could cause change in B, that is not A • Object of experiment is to prove A causes B
Mean/Median/Mode • Mean – average score • Median – middle score • Mode – most frequent
Standard Deviation • An index of the amount of a variability in a set of data • When the variability is larger so to will the the standard deviation • Typical distribution is: • 1 standard deviation is 68% • 2 standard deviation is 95% • 3 standard deviation is 98%
Correlation Coefficient • A number that measures the strength of a relationship • Range from -1 to +1 • Relationship gets weaker the closer to zero • Which is a stronger correlation? • -.13 or +.38 • -.72 or +.59 • -.91 or +.04
Sampling Bias • When a sample is not representative of the population from which it is drawn from • Example: Dewy defeats Truman election results • Polls tend to focus on middle/upper class white college students
Placebo Effects • Resembles a drug, but no effect • Why is it used? Expectations can influence feelings, reactions, behavior and going into something positive can have a beneficial effect
The Biased &The Blind • Experimenter Bias • Another confounding variable • Not a conscious act • Looks for the good results in study not the bad • Double-Blind Procedure - neither the participants or the experimenters know who is receiving a particular treatment • Single-Blind - an experiment in which the person collecting data knows whether the subject is in the control group or the experimental group, but subjects do not
The Neuron • Dendrites – receive message • Soma – cell body • Axon – carries the electrical message • Myelin Sheath – protects the axon, and speed up the message • Node of Ranvier – gap between myelin sheath – helps speed up message • Synapse – chemical message takes place
The Neuron • Action Potential (nerve impulse) – firing of neuron • Allows electrical charged ions of potassium/sodium to enter cells • All or nothing • Absolute Refractory Period – minimal length of time to fire again • Resting Potential – 70 millivolts
The Neuron • Post Synaptic Potential • Excitatory PSP – Ups likelihood of firing • Inhibitory PSP – Hampers likelihood of firing • Reuptake – after neurotransmitter is released had has conducted the impulse to the next cell(s), it is either broken down by enzymes or absorbed back into firing cell for reuptake
Key Neurotransmitters • Acetylcholine – memory, muscle contraction, particularly in the heart • Serotonin – arousal, sleep, pain sensitivity, and mood and hunger regulation (OCD/Depression) • Dopamine – movement, attention, and reward; dopamine imbalances may play a role in (low levels) Parkinson’s disease and in (high levels) schizophrenia • GABA – inhibitory neurotransmitter • Norepinephrine– affects alertness; lack of depression • Endorphins – body’s natural painkillers
Nervous System • Peripheral – all nerves outside brain and spinal cord • Somatic – connect voluntary muscles to sensory receptors • Autonomic – Connect the heart, blood vessels, smooth muscles, and glands • Sympathetic - mobilizes resources for emergencies • Fight or Flight • Parasympathetic – Conserves body resources
Roger Sperry – Split Brain Research • Sperry received the prize for his discoveries concerning the functional specialization of the cerebral hemispheres • corpus callosum
Endocrine System • Pituitary gland (master gland) – releases hormones which control release of other glands • Adrenocorticotropic Hormone (ACTH) – released in stressful situations • Adrenal glands – fight-or-flight • Epinephrine (adrenaline) and Norepinephrine (noradrenaline) • Thyroid produces thyroxin regulate metabolism