Ch 4 Learning - Chapter 4: Learning I. Classical...

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Chapter 4: Learning I. Classical Conditioning : paired learning A. Learning is a relatively permanent change in behavior that results from experience. B. Classical Conditioning was accidentally discovered by Ivan Pavlov 1. Discovered while he was studying the salivation reflex in dogs. C. Components of classical conditioning: 1. Unconditioned Stimulus (UCS) : food 2. Unconditioned Response (UCR) : salivation to food 3. Conditioned Stimulus (CS) : sound of a tone 4. Conditioned Response (CR) : salivation to tone D. Factors that affect classical conditioning: 1. Reverse order conditioning. a. Normally, food (UCS) immediately follows presentation of tone (CS). b. When tone (CS) precedes food (UCS), there is no conditioning. 2. In food aversions, delay between UCS and CS may be longer and still be effective D. Types of classical conditioning 1. Avoidance learning is a type of classical conditioning in which the CS is paired with an unpleasant UCS so that the organism tries to avoid the CS. 2. A conditioned emotional response - emotional response elicited by a previously neutral stimulus. 3. John Watson and the “Little Albert” study proved that fear responses in humans can be classically conditioned. E. Not all responses can be conditioned from all stimuli. 1. Biological preparedness allows some conditioned responses to be readily learned. 2. Counterpreparedness makes it difficult to condition responses from some stimuli. F. Extinction is the process through which a CS weakens and disappears after the repeated presentation of a CS without the presence of the UCS. 1. Extinction does not lead to forgetting of the CR; rather it leads to new learning that overlays the old learning, that the CS no longer leads to the UCS 2. Once learned, the stimulus-response connection is never eliminated. 3. Spontaneous recovery is process by which after extinction has occurred, the CS will again elicit a CR. E. Stimulus generalization is the tendency for the CR to be elicited by neutral stimuli that are similar to the original CS. 1.
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This note was uploaded on 01/04/2010 for the course ADS pp taught by Professor Drbrian during the Spring '09 term at Abraham Baldwin Agricultural College.

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Ch 4 Learning - Chapter 4: Learning I. Classical...

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