PSYC-281 Lecture Notes - Lecture 4: Disinhibition, Habituation
20 Jun 2018
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Extinction-where a CR is weakened or
eliminated when the CS is repeatedly
presented in the absence of the US
Tone: shock -> fear
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NS US UR
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Tone -> fear
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CS CR
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…
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…
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…
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Tone-> no fear
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'NS'
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•
Habituation-US not CS
Loud noise -> startle
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US UR
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….
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…
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…
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Loud noise -> no startle
○
•
Why it doesn’t actually turn into an NS
again in extinction-Spontaneous recovery
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Extinction is not unlearning, it is
learning something new-inhibition
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During the rest period the inhibition
dissipates
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Disinhibition-suuden recovery of cr when
novel stimulus introduced
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Chapter 4
Monday, October 2, 2017
10:51 AM
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