Lect+9+02_23_10 - Classical Conditioning#4 Instrumental...

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Unformatted text preview: Classical Conditioning (#4) Instrumental Conditioning: Foundations (#5) (2-23-10) Overview ¡ Ch 4 ¢ How Do Conditioned and Unconditioned Stimuli Become Associated? ¡ The Blocking Effect ¡ The Rescorla- Wagner Model ¡ Other Models of Classical Conditioning Overview ¡ Ch 5 ¢ Early Investigations of Instrumental Conditioning ¢ Modern Approaches to the Study of Instrumental Conditioning ¡ Discrete- Trial Procedures ¡ Free- Operant Procedures ¢ Instrumental Conditioning Procedures ¡ Positive Reinforcement ¡ Punishment ¡ Negative Reinforcement ¡ Omission Training Announcements ¡ https://secure.fas.rutgers.edu/ apps/gradebook/ ¡ Exam 2/16/2010 ¢ 50 multiple choice questions ¢ Raw Scores 10 20 30 40 50 60 midterm 1 raw scores Frequency 50 100 150 200 5 10 15 20 25 30 35 40 45 50 55 C u m u l a t i v e F r e q u e n c y 168.0 Count 6.3 Std Dev. 0.5 Std Error 33.0 Mode 33.5 Median ~67 33.3 Mean % number mid term 1 raw scores Input Range = cl_e1!$G$1:$G$169 Descriptive Statistics for: Chap. 5 Instrumental Conditioning Foundations ¡ Classical conditioning and operant conditioning are different learning methods. ¡ The two methods have the word conditioning in common. ¡ What is conditioning? ¡ Conditioning is the acquisition of specific patterns of behavior in the presence of well-defined stimuli. Differences Between Classical Conditioning and Operant Conditioning Classical Conditioning Operant Conditioning ¡ Uses the term response Uses the term behavior ¡ Acquisition Acquisition ¡ Spontaneous recovery Spontaneous recovery ¡ Stimulus generalization Stimulus generalization ¡ Based on involuntary reflexive Based on voluntary behavior behavior ¡ Response is biologically based Behavior is not (fear or anxiety) biologically based Differences Between Classical Conditioning and Operant Conditioning ¡ Classical Conditioning Operant Conditioning ¡ Main components: stimulus and Main components: behavio and its response consequence ¡ Association between stimuli Reinforcement and responses ¡ Cannot be used to shape behavior Can be used to shape behavior Differences Between Classical Conditioning and Operant Conditioning Classical Conditioning Operant Conditioning The stimulus causes the response The consequence influences the behavior To extinguish the learned response: To decrease the learned behavior stop pairing stop reinforcing Extinction – stop pairing Extinction – stop reinforcing Thorndike and The Law of Effect ¡ Edward Lee Thorndike (1874-1949) ¡ Thorndike's thesis showed that cats learn through a gradual process of trail and error. This trial and error leads to the "stamping in" of correct responses. ¡ This led to much of his later work, and to the work of others, looking at the function of reward and punishment on learning Thorndike’s Puzzle Box Thorndike’s Puzzle Box ¡ Typical puzzle box consisted of ropes levers and latches that an animal (typically a cat) could use as a means for escape....
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Lect+9+02_23_10 - Classical Conditioning#4 Instrumental...

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