Psychology
SCIENTIFIC STUDY OF BEHAVIOR AND MENTAL PROCESSES
Psychology
- The goals of Psychology
- What theories does psychology explore?
- Fields of Psychology
Psychology Goals
i) Describe
ii) Explain Why?
iii) Predict behavior consequences
iv) Control behavior and mental processes
Psychology - Theory
i) Propose reasons for relationships
ii) Derive explanations
iii) Make predictions
Psychology - Studies
i) Research
ii) Applied Research
iii) Practice
iv) Teaching
Scientists of Psychology
-
Wilhelm Wundt
- William James
- John Watson
- BF Skinner
- Sigmund Freud
- Carl Jung
- Adler
- Piaget
- Kohlberg
- Elizabeth Kubler Ross
- Pavlov
Wilhelm Wundt
i) Structuralism
(1) Objective sensations, mental images, subjective feelings
(2) Mind functions by combining objective and subjective elements of experience
William James
i) Functionalism
(1) Studied behavior, mind, and consciousness
(2) Observation of thought will manifest into a behavior
John Watson
i) Behaviorism
(1) Belief in ability to observe measurable behavior
(2) Little Albert
(a) Associate loud noise to animals to form fears
(3) Taste Aversion
(a) Senses bring discomfort
BF Skinner
i) Learned behavior is reinforced
ii) Does not believe in free will because all drives are motivated by some kind of reinforcement
iii) Schedules of reinforcement
(1) Fixed ratio
(a) Reinforcement given after fixed number of responses
(2) Variable Ratio
(a) Reinforcement given after uncertain responses
BF Skinner Continued
(3) Fixed interval
(a) Reinforcement given after fixed number of correct responses over time
(4) Variable Interval
(a) Reinforcement given after first correct response
Sigmund Freud
i) Psychoanalysis
ii) Gave cocaine to his patients for treatment
iii) Analyzed personalities
iv) The Cognitive Perspective
(1) Concerned with the ways we mentally perceive the world
(2) Memory, perceptions, learning, problem solving, decision making, language, planning
Sigmond Freud Continued
v) Psychoanalytic Theory – Structure of Personality
(1) ID: pleasure principle
(2) Ego: Reality principle
(3) Superego: Moral component
(4) Conscious, preconscious, and unconscious
SIGMOND FREUD CONTINUED
vi) Psychodynamic Perspectives
(1) Rationalization – Question why?
(2) Repression – Don’t think about it
(3) Projection – Shares feelings
(4) Displacement – Uneasy feelings bought to a safe environment
(5) Reaction Formation – Do something constructive
(6) Regression – Not your fault
(7) Identification – How you identify yourself amongst your friends
SIGMOND FREUD CONTINUED
vii) Freud’s Psychosexual stages of Development
(1) Fixated: growth and development stops
(2) Oral: first year
(3) Anal: second year
(4) Phallic: around four
(5) Latency: around six
(6) Genital: beginning of puberty
(7) Oedipal complex: instinctive energy to bind to the opposite parent
Piaget
i) Theory of Cognitive Development
(1) Scheme
(a) Cognitive structure (file folder)
(2) Assimilation
(a) New objects are inherited from previous schemes
(3) Accommodation
(a) Existing schemes are modifiers
(4) Sensorimotor (0-2)
(a) Object permanence
Piaget Continued
(5) Preoperational (2-7)
(a) Symbolic function
(i) Pretend play
1. Blocks are cars
(ii) Egocentrism
1. See what you see, feel like they feel, thinks what they think
a. “a cookie is only good if it is unbroken"
Piaget Continued
(6) Concrete (7-11)
(a) Objects stay after being hidden
(7) Formal Operations (11+)
(a) Think with from new perspectives, beginning of deductive reasoning
(8) Hypothetic
(a) Deductive thinking
Kohlberg
i) Moral compass
(1) More interested in the reasons for participants responses than whether behavior was judged right or wrong
ii) Theory of Moral Development
(1) Preconvention
(a) Reasoning and actions governed by standards of others and not internalized standards
(2) Stage 1
(a) “right is whatever avoids punishment”
Kolhberg Continued
(3) Stage 2
(a) “right is whatever is rewarded”
(4) Stage 3
(a) “right is what is approved”
(5) Stage 4
(a) Laws are formed to protect society and the individual
(6) Stage 5
(a) Ethical decisions based on universal principles
Elizabeth Kubler Ross
i) Stages of Grieving
(1) Denial
(2) Anger
(3) Bargaining
(4) Depression
(5) Acceptance
Pavlov
i) Classical Conditioning
(1) Stimulus
(a) Any object with provokes a response
(2) UCS (Unconditioned Stimulus)
(a) Stimulus that evokes a response
(3) UCR (Unconditioned Response)
(a) A natural response
Pavlov continued
(4) CS (Conditioned Stimulus)
(a) A stimulus that becomes associated with an event after repetition
(5) CR (Conditioned Response)
(a) A response that comes due to a repeated pairing with its cs
Pavlov Continued
ii) Extinction
(1) Disappearance of the CR with CS without the UCS
iii) Spontaneous Recovery
(1) Reappearance of extinguished response after exposure to original CS
iv) Changing CR
(1) Generalization
(a) The tendency to make a CR to a stimulus that is similar to the original CS
Pavlov Continued
(2) Discrimination
(a) Distinguish between similar stimuli
Lab Science Of Psychology
- The Scientific Method
- Samples and Populations
- Methods of Observation
- Experimental Method
- Types of Groups
- Ethics of Research
The Scientific Method
a) The Scientific Method
i) Ask a Question
ii) Do Background Research
iii) Construct a Hypothesis
iv) Test Your Hypothesis by Doing an Experiment
v) Analyze Your Data and Draw a Conclusion
vi) Communicate Your Results
Samples and Populations
i) Sample
ii) Population
iii) Representative samples allow generalization
iv) Random and Stratified Sampling
(1) Random Sample
(2) Stratified sample (pool from large population)
(3) Volunteer bias
Methods of Observation
i) Case study
(1) Gather info from groups
ii) Survey
(1) Collect info that cannot be observed directly
iii) Naturalistic Observation
(1) Observe in natural environment
(2) Unobtrusive measure
Experimental Method
i) Demonstrates cause and effect through scientific method
(1) Independent variable
(2) Dependent variable
(3) Attitude (Dependent) depends on temperature (independent)
Types of Groups
i) Control groups
(1) Either retrieve no treatment or a standard treatment
ii) Blind
(1) Information that may cause bias is concealed from the tester
iii) Double Blind
(1) Denoting a test in which any information that may influence behavior of the tester or the subject is withheld until after the test
Ethics of research
i) No harm will come to subjects of experiments
ii) Informed consent
iii) Confidentiality
iv) Deception
v) Debriefing
vi) No research on animals unless it cannot be done on humans
Drugs
- Opiates
- Depressants
- Stimulants
- Substance Abuse
- Drug Dependence
- Behavior Effects
Opiates
i) Heroin and morphine
(1) Mimic the effects of the brain’s own endorphins
(a) Pain relieving properties
(b) Feelings of well being
Depressants
i) Alcohol
ii) Benzodiazepines
(1) Suppressive of the nervous system
Stimulants
i) Mimics the effects of epinephrine
(1) Cocaine, nicotine, amphetamines (release of dopamine)
Substance Abuse
i) Use of drug proceeding negative consequences
Drug Dependence
i) Physical changes due to drug dependents
ii) White knuckling (forcing through withdrawal)
iii) Need to have psychological desire to come off a dependency
Behavior Effects
i) Stimulants
(1) Increases focusing ability
(2) Suppressing appetite
(3) Crack
(a) Depression is key problem
ii) Depressants
(1) Alcohol
(2) Depress central nervous system
Behavior effects continued
iii) Depressants
(1) Alcohol
(2) Depress central nervous system
iv) Hallucinogens
(1) Marijuana
(a) Attaches to fat
(b) Loss of attention and coordination
Behavior Effects continued
(2) LCD (Acid)
(a) Trip lasts 10-12 hours
(b) Bad trips (depends on personal feelings)
(3) Designer Drugs
(a) Mimics effects of hallucinogens
(b) Ecstasy
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