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Lecture 7

PSYC 1010 Lecture Notes - Lecture 7: Table Tennis, Reinforcement, Classical Conditioning

Course Code
PSYC 1010
Vivienne Monty

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If something is based on learning, it can be unlearned.
Tuesday, November 09, 2010
6:03 AM
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Model of learning
Beer commercial for men:
targets all the things that men
want. They have been
conditioned. Example of
classical conditioning.
No salivation
Food (UCS)
Inevitably leads to salivation
Salivation (UCR)
Tone + Food (CS) + (UCS)
Associated with the meat - conditioned
Salivation (UCR)
Tone (CS)
Salivation (CR)
Conditioned Response has been learned!
In order for you to acquire
the new behavior, when
should it be paired for the
conditioning occur? (With the
tone, it had to be established
right before the food).
Simultaneously works too.
Cannot be established if the
unconditioned stimulus
comes after.
Can respond to stimulus that
is similar to the original
How do you get rid of
conditioned responses?
-> Presentation of CS alone.
(i.e. stop bringing food after
the tone.)
Worst thing you can do when you are afraid of
something is to run away.
Classical Conditioning
Tuesday, November 09, 2010
6:07 AM
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Watson -> build on the work of
Pavlov. Tried to see if babies could
be conditioned to be afraid of furry
objects. (no response - positive
response). Conditioned Albert with
the sound of a hammer banging
against a steel bar behind him.
(UCS) Paired the loud bang with a
white rat over a few weeks.
Associated white furry objects with
the white rat + bar. Developed a
real phobia.
CS - Snow
UCS - Terror when buried by an avalanche
CR - Conditioned fear response to snow
Avoidance of snow -> negative reinforcement of avoidance behaviours by fear reduction
Successful avoidance prevents exposure to CS and possible extinction of CR.
-When you avoid something, you initially feel good - going from high anxiety to a sense of
relief. (Being rewarded for avoiding things that we are afraid of -> creates new behaviour
because it feels good). Negative reinforcement
Rat learns to fear the light.
Classical conditioning - shock
paired with light.
Operant conditioning -> rat
learns to run away, and to
avoid that part of the cage.
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6:08 AM
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