4 & 5 Classical Conditioning

4 & 5 Classical Conditioning - Classical Conditioning Ivan...

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Classical Conditioning Ivan Pavlov
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Background Pavlov was A physiologist Won a Nobel Prize for dog digestion Accidentally came to discover classical conditioning
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Association of Reflex A reflex is universally shown by all members of a species (or gender of the species). inherited because they are adaptive. The environment has selected for those individuals who had a genetic predisposition to behave in this way. involve an activity that must occur with very little conditioning. For example, a baby does not have time to learn how to suckle or blink. The relationship between the environment (the stimulus) and behavior (the response) is non-arbitrary and relatively un-modifiable. For example, food produces salivation.
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Classical Conditioning Exploits a pre-existing S-R reflex association in order to elicit a desired behavior S Stimulus R Response Because these responses are unlearned (reflexes) we refer to them as unconditioned
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What about the dogs? Study of digestive secretions Gave food and measured secretions After a while salivation occurred prior to food How could this happen Pavlov believed Something occurring prior to the delivery of food that produced the salivation as a result of its association with the food
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The set up
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Basic components of CC Unconditional Stimulus (UCS) --a stimulus that, without conditions, will elicit a predictable response. Unconditional Response (UCR) --a response that, without conditions, results predictably from an unconditional stimulus. Neutral Stimulus (NS) – stimulus that prior to conditioning produces no specific response Conditional Stimulus (CS) --a stimulus that will elicit a predictable response because of its previous pairing with a UCS. Conditional Response (CR) --a predictable response to a conditioned stimulus that occurs because of its unconditioned association with a UCS.
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How does this work? UCS UCR NS nothing NS + UCS UCR Repeat to develop an association between NS and UCS NS UCR At this point the NS is the CS and the UCR is the CR *note - = elicits
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What association is made? Pavlov – What explains classical conditioning? Stimulus Substitution Theory
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This note was uploaded on 04/17/2008 for the course PSYCH 230 taught by Professor Steele during the Spring '08 term at Radford.

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4 & 5 Classical Conditioning - Classical Conditioning Ivan...

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