Operant Conditioning

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UNIT 6: LEARNING

(CONDITIONING)

Classical

Conditioning

Operant

Conditioning

Observational

Learning

dog drool & bell pigeon reward & punishment

Baby Albert

BoBo Doll learning by watching

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

TEST: Tuesday Nov. 25th

FRQ #3

Operant Conditioning

OBJ. 8-11 PGS. 228-235

OBJ. 12-13 PGS. 235-240

OPERANT CONDITIONING

OBJECTIVE 8

WHAT IS OPERANT CONDITIONING & HOW IS IT DIFFERENT FROM

CLASSICAL CONDITIONING

Respondent behavior

CLASSICAL

CONDITIONING

 behavior that occurs as an automatic response to some stimulus (no control)

Operant conditioning

 Associate own actions with consequences

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 unpigeonlike behavior

SKINNER’S EXPERIMENTS

Operant Chamber (Skinner Box)

SKINNER’S EXPERIMENTS

SHAPING 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

OBJECTIVE 9

WHAT ARE THE BASIC TYPES OF REINFORCERS?

 Reinforcer

 Anything that strengthens the behavior it follows

 Positive reinforcement – adds a positive

 Negative reinforcement punishment

Not punishment

– removes a negative

Removes a punishing event

3. Do people look forward to negative reinforcement: yes / no

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

SKINNER’S EXPERIMENTS

TYPES 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 & highachieving

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

Skinner’s Experiments

Reinforcement Schedules

Interval (2) Ratio (2)

 dependent on the behavior itself; a certain number of responses are needed before reinforcement will occur

 involves a TIME element; time must pass before reinforcement will occur

FIXED –INTERVAL

FIXED –RATIO

 reinforce behavior after set # of responses

VARIABLE-RATIO

 reinforce 1 st response after set time…produces stop-start behavior (more as reward draws near)

 reinforce behavior after unpredictable # of responses…slot machine

VARIABLE-INTERVAL

 reinforce 1 st response after varying time intervals

Skinner’s Experiments

Reinforcement Schedules

Skinner’s Experiments

Reinforcement Schedules

Skinner’s Experiments

Reinforcement Schedules slot machine

Skinner’s Experiments

Reinforcement Schedules

Reinforcement Schedules

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

Skinner’s Experiments

Punishment

Skinner’s Experiments

Punishment

Skinner’s Experiments

Punishment

Skinner’s Experiments

Punishment

Skinner’s Experiments

Punishment

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.

SKINNER’S EXPERIMENTS

PUNISHMENT

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

Punishment tells you what not to do; reinforcement tells you what to do

OBJECTIVE 12:

DO COGNITIVE PROCESSES & BIOLOGICAL

CONSTRAINTS AFFECT OPERANT CONDITIONING?

Latent learning

 Cognitive map

Insight learning

 Intrinsic motivation

 Extrinsic motivation

EXTENDING SKINNER’S UNDERSTANDING

BIOLOGICAL PREDISPOSITIONS

Biological constraints predispose organisms to learn associations that are naturally adaptive

Instinctive Drift

SKINNER’S LEGACY

APPLICATIONS OF OPERANT

CONDITIONING

At school

In sports

At home

For selfimprovement

CONTRASTING CLASSICAL AND OPERANT

CONDITIONING

Similarities between classical and operant conditioning

Differences between classical and operant conditioning

Contrasting Classical and Operant

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Contrasting Classical and Operant

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Contrasting Classical and Operant

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Contrasting Classical and Operant

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Contrasting Classical and Operant

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Contrasting Classical and Operant

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Contrasting Classical and Operant

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Contrasting Classical and Operant

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Contrasting Classical and Operant

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Contrasting Classical and Operant

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Contrasting Classical and Operant

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Contrasting Classical and Operant

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Contrasting Classical and Operant

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