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PSY260H1 Chapter Notes -Interstimulus Interval, Classical Conditioning, Social Learning Theory


Department
Psychology
Course Code
PSY260H1
Professor
Jan Paulsson

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Learning
Learning (conditioning) - is a relatively permanent
change in behavior or knowledge that comes from
experience or training.
Learning Theories
Classical Conditioning
Operant Conditioning
Social Learning Theory
Behaviorist Approach
Our personality is the product of our conduct.
~Aristotle
Classical Conditioning
Ivan Pavlov Russian Physiologist
Classical Conditioning
Learning to transfer a natural response from one
stimulus to another previously neural stimulus.
Basic Elements of Classical Conditioning
Unconditioned Stimulus (US): A stimulus that will
provoke a response without training
e.g. food
Unconditioned Response (UR): The response to an
unconditioned stimulus e.g. salivation
Conditioned Stimulus (CS): A stimulus that is paired
with a US, and comes to provoke the same response as
the US (in the absence of the US)
e.g. bell

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Conditioned Response (CR): The same response as
the UR, but now to a CS, rather than to a US
e.g. salivation
Extinction
What would happen if Pavlov kept ringing the bell but
didnt give the dogs any more food? The conditioned
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response (CR) would eventually disappear or be
extinguished.
Extinction takes place, when you repeatedly present the
conditioned stimulus (CS) without the (US).
Spontaneous Recovery
The tendency for an extinguished conditioned response
to recur after a rest period.
Stimulus Generalization
The tendency for the conditioned response to occur in
response to stimuli similar
to the original conditioned stimulus.
Stimulus Discrimination
The opposite of generalization
The learned ability to distinguish between a conditioned
stimulus and other
similar stimuli.
Interstimulus Interval
The timing of the presentation of the CS and US. The
interstimulus interval is best when the CS is presented
just before the US. The bell is rung, and then a few
moments later the food is presented.
Conditioned Food Aversion
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