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Learning. Ivan Pavlov. Interested in the way behavior is conditioned by association. Conducted experiments to test behavioral responses to stumuli. Classical Conditioning. Phases of Classical Conditioning. Phases of Classical Conditioning. Phases of Classical Conditioning. Learning Factors.
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Ivan Pavlov Interested in the way behavior is conditioned by association. Conducted experiments to test behavioral responses to stumuli.
Learning Factors • Number of pairings • Strength of UCS • Reliability of CS in predicting UCS • Occurrence of CS just before UCS
Classical Conditioning Applied • Flooding • Systematic desensitization • Taste aversion (Smell aversion…)
Systematic Desensitization RELAXING IMAGE (UCS) Calm (UCR) Relaxing Image paired with a FEARED OBJECT (CS) Calm (UCR)
Systematic Desensitization Until finally Calm (CR) The FEARED OBJECT (CS)
Thorndike's Law of Effect Good Outcome Strengthens Response Stimulus Bad Outcome Weakens
Operant Conditioning Increases chances of Behavior followed by Reinforcement
For Your Viewing Pleasure….Einstein the Parrot • http://tinyurl.com/52ydx
B. F. Skinner Described operant conditioning. Investigated reward schedules.
Beyond Basic Operant Conditioning • Generalization and discrimination • Extinction and Spontaneous Recovery • Shaping • Superstitious Behavior • Primary and Secondary Reinforcers
Reinforcement Schedules • Continuous Reinforcement • Fixed Ratio • Variable Ratio • Fixed Interval • Variable Interval
Typical Response Curves Response Rate REWARDS Time Since Beginning
Typical Response Curves Response Rate Time
Reward vs.Punishment Makes a behavior more likely Makes a behavior less likely, or... Causes avoidance of the punisher, or ... Makes the organism avoid getting caught, or... Causes habituation to punishment, or... Has no effect if the reward is greater than the punishment is aversive, or... Combinations of the previously noted effects
Punishment • Limitations • Alternatives • Removing • Behavior Modification • Token Economies • Time Outs
But, humans aren’t rats... • Humans form hypotheses, and humans can learn through observation. • Hypothesis Testing • Insight Learning • Latent Learning • Tolman • Bandura (Observational Learning)
Observational Learning People tend to imitate: • People they see as more like them • People who are rewarded • Prestigious people
Cognitive and Social Learning • Learning from models • “Do as I do” • Learning from television