I. Pavlov John Watson Classical Conditioning B.F. Skinner A. Bandura Operant Conditioning...
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UNIT 6: LEARNING (CONDITIONING)
I. PavlovJohn Watson
Classical Conditionin
g
B.F. SkinnerA. Bandura
Operant Conditionin
g
Observational
Learning
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dog drool & bellBaby Albert
pigeon reward &
punishment
BoBo Dolllearning by watching
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UNIT 6 OVERVIEW How Do We Learn?
objective 1
Classical Conditioning objectives 2-7
Operant Conditioning objectives 8-13
Learning by Observation objectives 14-15
7-9% of test
TEST: Tuesday Nov. 25th
FRQ #3
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Operant ConditioningOBJ. 8-11 PGS. 228-235
OBJ. 12-13 PGS. 235-240
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OPERANT CONDITIONING
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OBJECTIVE 8 WHAT IS OPERANT CONDITIONING & HOW IS IT DIFFERENT FROM CLASSICAL CONDITIONING
Respondent behavior behavior that occurs as an
automatic response to some stimulus (no control)
Operant conditioning Associate own actions with
consequences
CLASSICAL CONDITIONING
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SKINNER’S EXPERIMENTS
Edward Thorndike’s Law of Effect 1874-1949 Rewarded behavior is
likely to recur Puzzle box
B.F. Skinner (1904-1990) behavior control
Teach pigeons unpigeon-like behavior
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SKINNER’S EXPERIMENTS
Operant Chamber (Skinner Box)
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SKINNER’S EXPERIMENTSSHAPING BEHAVIOR
Shaping reinforcers guide successive
approximations Discriminative stimulus
in operant conditioning, a stimulus that elicits a response after association with reinforcement (in contrast to related stimuli not associated with reinforcement).
Teach pigeon to peck after seeing human face but not other images, pigeon learns to recognize faces…faces= discriminative stimulus
Which type of stimulus gets the reaction that is reinforced
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OBJECTIVE 9WHAT ARE THE BASIC TYPES OF REINFORCERS?
Reinforcer Anything that strengthens the behavior it follows Positive reinforcement – adds a positive Negative reinforcement – removes a negative
Not punishment Removes a punishing event
1. Another term for negative reinforcement: correction, reprimand, punishment
2. When you supply negative reinforcement it usually results in: weakening a behavior / strengthening a behavior
3. Do people look forward to negative reinforcement: yes / no
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NEGATIVE REINFORCEMENT
Taking aspirin to relieve headache Putting mittens on because it is cold Giving in to a whining child Fanning oneself to escape the heat Leaving a movie theater if the movie is
bad Smoking in order to relieve anxiety Feigning stomachache to avoid school Putting up umbrellas to escape the rain
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SKINNER’S EXPERIMENTSTYPES OF REINFORCERS
Primary reinforcer Satisfies a biological need
Conditioned reinforcer Gains its reinforcing power through
its association w/ the primary reinforcer
Secondary Reinforcer
Immediate vs Delayed Reinforcers immediate best in animals Humans respond to delayed
Social competent & high-achieving
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OBJECTIVE 10:WHAT ARE THE TWO REINFORCEMENT SCHEDULES & HOW DO THEY EFFECT BEHAVIOR?
1. Continuous Reinforcment Learning occurs rapidly, but… Extinction occurs rapidly
2. Partial (intermittent) Reinforcment Slower to learn but more resistant to
extinction 4 types of partial schedules
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slow/steadyra
te of responding
Skinner’s ExperimentsReinforcement Schedules
Ratio (2) dependent on the
behavior itself; a certain number of responses are needed before reinforcement will occur
FIXED –RATIO reinforce behavior after
set # of responses VARIABLE-RATIO
reinforce behavior after unpredictable # of responses…slot machine
Interval (2) involves a TIME element;
time must pass before reinforcement will occur
FIXED –INTERVAL reinforce 1st response
after set time…produces stop-start behavior (more as reward draws near)
VARIABLE-INTERVAL reinforce 1st response
after varying time intervals
high rate of
responding
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Skinner’s ExperimentsReinforcement Schedules
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Skinner’s ExperimentsReinforcement Schedules
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Skinner’s ExperimentsReinforcement Schedules
slot machine
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Skinner’s ExperimentsReinforcement Schedules
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Reinforcement SchedulesInterval:
subject must be behaving at the right time to get reinforcement
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OBJECTIVE 11:HOW DOES PUNISHMENT EFFECT BEAHVIOR?
Punishment Positive punishment Negative punishment
Negative Reinforcement encourages behavior.
When something unpleasant ceases, the behavior that caused it to stop is reinforced
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Skinner’s ExperimentsPunishment
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Skinner’s ExperimentsPunishment
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Skinner’s ExperimentsPunishment
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Skinner’s ExperimentsPunishment
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Skinner’s ExperimentsPunishment
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SENSITIVITY TO PUNISHMENT & REWARD QUESTIONNAIRE
Are some of us more sensitive to punishment?
Are some of us more sensitive to reward?
Sensitivity to Punishment Assign 1 point for each yes answer for odd #s 0-24 range
Sensitivity to Reward Assign 1 point for each yes answer for even #s
High punish. Score vulnerable to anxiety. High reward score = impulsivity.
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SKINNER’S EXPERIMENTSPUNISHMENT
Negatives of using punishment Punished behavior is suppressed not
forgotten Punishment teaches discrimination
did child learn not to curse or just not to curse in house?
Punishment can teach fear Physical punishment may increase
aggression
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Punishment tells you what not to do; reinforcement tells you what to do
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OBJECTIVE 12:DO COGNITIVE PROCESSES & BIOLOGICAL CONSTRAINTS AFFECT OPERANT CONDITIONING?
Latent learning Cognitive map
Insight learning Intrinsic
motivation Extrinsic motivationoverjustification effect
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EXTENDING SKINNER’S UNDERSTANDINGBIOLOGICAL PREDISPOSITIONS
Biological constraints predispose organisms to learn associations that are naturally adaptive
Instinctive Drift
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SKINNER’S LEGACYAPPLICATIONS OF OPERANT CONDITIONING
At school In sports At home For self- improvement
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CONTRASTING CLASSICAL AND OPERANT CONDITIONING
Similarities between classical and operant conditioning
Differences between classical and operant conditioning
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Contrasting Classical and Operant Conditioning
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Contrasting Classical and Operant Conditioning
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Contrasting Classical and Operant Conditioning
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Contrasting Classical and Operant Conditioning
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Contrasting Classical and Operant Conditioning
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Contrasting Classical and Operant Conditioning
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Contrasting Classical and Operant Conditioning
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Contrasting Classical and Operant Conditioning
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Contrasting Classical and Operant Conditioning
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Contrasting Classical and Operant Conditioning
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Contrasting Classical and Operant Conditioning
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Contrasting Classical and Operant Conditioning
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Contrasting Classical and Operant Conditioning
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Contrasting Classical and Operant Conditioning
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Contrasting Classical and Operant Conditioning
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Contrasting Classical and Operant Conditioning
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Contrasting Classical and Operant Conditioning
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Contrasting Classical and Operant Conditioning
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Contrasting Classical and Operant Conditioning
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Contrasting Classical and Operant Conditioning
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Contrasting Classical and Operant Conditioning
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Contrasting Classical and Operant Conditioning
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Contrasting Classical and Operant Conditioning
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Contrasting Classical and Operant Conditioning
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Contrasting Classical and Operant Conditioning
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Contrasting Classical and Operant Conditioning
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Contrasting Classical and Operant Conditioning
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Contrasting Classical and Operant Conditioning