PSYCH Lecture 9 - Learning

PSYCH Lecture 9 - Learning - Learning Learning Learning...

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Learning
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Learning Learning Defined: Any relative permanent change in behavior that occurs because of experience Conditioning: A kind of learning that involves associations between environmental stimuli and responses
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Types of Conditioning Classical Conditioning: (Pavlov) The organism learns to associate two stimuli One produces a response that originally was only produced by the other Classic example of dog/bell and salivation
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Unconditioned Stimulus (US): Elicits the unconditioned response – you don’t have to learn it Food – makes the dog salivate Air blows in face (in eye) Electric shock, causes defense mechanism Unconditioned Response (UR): Response which is automatically produced Salivate – because of food Eyes blink when air comes
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Conditioned Stimulus (CS): Originally a neutral stimulus that elicits a behavior after being paired with a US (bell) Dog heard footsteps – accompany bell If you pair metronome with electric response, that causes a “conditioned response” for the dog to bring a defense mechanism even if just metronome plays Conditioned Response (CR): Response elicited by the conditioned stimulus Salivate to bell Conditioning
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Extinction: Repeat the conditioned stimulus WITHOUT the unconditioned stimulus over time and the conditioned response will disappear If metronome keeps playing without electric shock, defense mechanism gradually disappears
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Spontaneous Recovery: After a response has been EXTINGUISHED it may spontaneously reappear after the passage of time with exposure to just the conditioned stimulus (even few months later) JUST the stimulus (metronome), not the shock as well
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Higher Order Conditioning: pairing a neutral stimulus (bell) with the conditioned stimulus will create another conditioned stimulus (light) It’s however a weaker conditioned response. More likely to show extinction (food with bell, bell with light)
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Stimulus Generalization Stimulus generalization: After a stimulus becomes a conditioned stimulus for some response, other, similar stimuli may produce the same reaction If cat gets used to can sound, it will produce same reaction of salivating (even if it’s tomato paste can or something)
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Stimulus discrimination: One learns to realize the differences between similar stimuli
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This note was uploaded on 01/21/2012 for the course PSYCH 111 taught by Professor Schreier during the Winter '08 term at University of Michigan.

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PSYCH Lecture 9 - Learning - Learning Learning Learning...

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