PSY100H1 Lecture Notes - Radiography

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3 Aug 2010
School
Department
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Learning
z refers to an enduring change in the way an organism responds based on its experience
distinct from drug effects, fatigue or illness
z three assumptions of learning theories
responses are learned rather than innate
learning is adaptive
our experiments can uncover the laws of learning
Classical Conditioning
z Pavlov noted that reflexive salivation
in dogs could be elicited by stimuli
associated with feeding
z Reflex is response that is reliably
elicited by a stimulus
Food elicits salivation
Air puff elicits eye blink
z Reflexive stimulus and response are
unconditioned
z Neutral stimulus is referred to as the
conditioned stimulus (CS)
z CS is paired with the UCS over many
trials
z Which eventually comes to elicit a conditioned response
CR Æ resembles the UCR
Acquisition and Extinction
z Acquisition of classical conditioning
z repeated pairings of CS and UCS
z Extinction refers to the weakening of conditioning evident when the CS is presented
repeatedly without the UCS
z Spontaneous Recovery: refers to the reemergence of a previously extinguished CR
Stimulus Generalization and Discrimination
z Stimulus Generalization occurs when an organism that has learned a response to a
specific stimulus responds in the same way to new stimuli that are similar to the original
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Document Summary

Learning refers to an enduring change in the way an organism responds based on its experience. T distinct from drug effects, fatigue or illness. T responses are learned rather than innate learning is adaptive. T our experiments can uncover the laws of learning. pavlov noted that reflexive salivation in dogs could be elicited by stimuli associated with feeding. reflex is response that is reliably elicited by a stimulus. neutral stimulus is referred to as the conditioned stimulus (cs) cs is paired with the ucs over many trials. which eventually comes to elicit a conditioned response. acquisition of classical conditioning repeated pairings of cs and ucs. extinction refers to the weakening of conditioning evident when the cs is presented repeatedly without the ucs. spontaneous recovery: refers to the reemergence of a previously extinguished cr.

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