Ap psychology learning power point
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Transcript of Ap psychology learning power point
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AP PsychologyUnit: LearningBy Timothy D. Bradley, Jr.
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Learning• How do classical and operant
conditioning each explain learning?• What impact does the cognitive
process have on learning?
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Classical Conditioning
EQ: How is behavior affected by classical and operant conditioning?
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Vocabulary
• Learning• Unconditioned• Conditioned• Stimulus• Response• Generalization• Extinction• Spontaneous Recovery• Higher-Order Conditioning• Taste Aversion
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Learning The modification through experience of preexisting behavior and understanding
Habituation The process of adapting to stimuli that do not change.
Dishabituation The reappearance of your original response when a stimulus changes
Sensitization Increase in responsiveness to a stimuli
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Define the Terms
Unconditioned Stimuli
Unconditioned Response
Neutral Stimuli
Conditioned Stimuli
Conditioned Response
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Pavlov’s Experiment(Identify the Parts)
Unconditioned Stimuli
Unconditioned Response
Neutral Stimuli
Conditioned Stimuli
Conditioned Response
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Pavlov’s Dog
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Watson’s Experiment(Identify the Parts)
Unconditioned Stimuli
Unconditioned Response
Neutral Stimuli
Conditioned Stimuli
Conditioned Response
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Generalization and Discrimination• Stimulus Generalization: A phenomenon in which a conditioned
response is elicited by stimuli that are similar but not identical to the conditioned stimulus
• Stimulus Discrimination: A process through which individuals learn to differentiate among similar stimuli and respond appropriately to each one
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In pairs, complete CTA-Steps in Classical Cond.
Unconditioned Stimuli
Unconditioned Response
Neutral Stimuli
Conditioned Stimuli
Conditioned Response
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Figure 6.5 Idealized curve of acquisition, extinction, and spontaneous recovery The rising curve shows that the CR rapidly grows stronger as the CS and US are repeatedly paired (acquisition), then weakens as the CS is presented alone (extinction). After a pause, the CR reappears (spontaneous recovery).
© 2011 by Worth Publishers
Extinction and Spontaneous Recovery
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Garcia and Koelling (1966) Study
NS UCS Learned (CR)
Food, Light, & Clicker Shock Avoid Light (CS) and Clicker (CS)
Food, Light, & Clicker Radiation (nausea) Avoid Food (CS)
• Biological preparedness: tendency of animals to learn certain associations, such as taste and nausea with only a few pairings due to the survival value of the learning.• Disproved Pavlov’s ideas concerning one trial learning,
close temporal proximity, & equipotentiality.
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Learned Taste Aversions
• A.k.a The Garcia Effect• When it comes to food being
paired with sickness, the conditioning is incredible strong.• Even when food and sickness
are hours apart.• Food must be salient
(noticeable.)
Are there any foods that you cannot eat or could not eat at one time due to food poisoning or some other sickness that you had at the time?
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Aversion Therapy• A form of behavior therapy in which an aversive
(causing a strong feeling of dislike or disgust) stimulus is paired with an undesirable behavior in order to reduce or eliminate that behavior. • Unpleasant sensations are associated with
behavior, and behavior decreases or stops. • Differs from principles of operant conditioning. • In operant therapy, the aversive stimulus, usually
called punishment, is presented after the behavior rather than together with it.
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Operant Conditioning
EQ: How is behavior affected by classical and operant conditioning?
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Review and Preview
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Vocabulary
• Positive Reinforcement• Negative Reinforcement• Punishment• Discrimination• Shaping • Chaining• Fixed Ratio• Variable Ratio• Fixed Interval• Variable Interval
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Edward Thorndike’s Puzzle Box
Law of Effect: If an action is followed by a pleasurable consequence , it will be repeated, and if followed by an unpleasant consequence, it will not be repeated.
Instrumental Conditioning: Responses are strengthened when they are instrumental in producing a reward
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B.F. Skinner
Operant Conditioning: The focus is on the effect of consequences on voluntary (operant) behavior.
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Reinforcement
Primary Reinforcer
Secondary Reinforcer(Token Economy)
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Operant Conditionin
g
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Reinforcement and Punishment
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Big Bang Theory: Operant Conditioning
Find the Mistake
Mistake Explained
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Partial Reinforcement Schedule
FIXED VARIABLE
RATIO(# of Occurrences)
INTERVAL(Passage of Time)
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Partial Reinforcement Schedule
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Figure 6.13 Intermittent reinforcement schedules Skinner’s laboratory pigeons produced these response patterns to each of four reinforcement schedules. (Reinforcers are indicated by diagonal marks.) For people, as for pigeons, reinforcement linked to number of responses (a ratio schedule) produces a higher response rate than reinforcement linked to amount of time elapsed (an interval schedule). But the predictability of the reward also matters. An unpredictable (variable) schedule produces more consistent responding than does a predictable (fixed) schedule.
© 2011 by Worth Publishers
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Operant Conditioning at Work
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Activator
•Other that through classical and operant conditioning, how else does one learn?
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Cognitive Factors in Learning
EQ: How is behavior affected by cognitive learning?
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Vocabulary
• Latent learning• Cognitive Map (Mental Map)• Insight• Learned Helplessness• Observational Learning• Albert Bandura• Edward Tolman• Wolfgang Kohler• Martin Seligman
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Cognitive Maps and Latent Learning
• Edward Tolman’s Maze Study• Latent Learning: learning that remains hidden until its
application becomes useful• Challenged Skinner’s Theory (How?)• Cognitive/Mental Maps: Mental representations people
rely on to understand complex patters.• Examples???
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Kohler’s Insight Learning
• How were the chimpanzees able to demonstrate insight?• Insight: a sudden
“coming together” of all elements of a problem in a kin of “aha” moment• Example of insight
learning
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Seligman’s Learned Helplessness
• Martin Seligman’s (founder of positive psychology)• Dog Study: Original intent was to study escape or avoidance learning• Related it to Depression
Definition: Failure to continue exerting effort for an outcome because all previous attempts have failed
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Albert Bandura and Observational Learning
Observational Learning: learning new behavior by watching a model perform that behaviorModeled: imitated the behavior that was observed
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Cognitive Differences: Humans and ChimpanzeesAccording to the video, how does the learning behavior differ between human children and chimpanzees?