What does extinction refer to in conditioning?
ADisappearance of a learned response when reinforcement is removed
BSudden recovery of a forgotten conditioned response after a rest
CStrengthening of a learned response through repeated reinforcement
DGeneralisation of a learned response to all similar stimuli at once
Answer & Solution
Correct answer: A. Disappearance of a learned response when reinforcement is removed
1. The chapter defines extinction in a dedicated subsection.
2. Extinction means disappearance of a learned response.
3. This happens because reinforcement is removed from the situation where the response used to occur.
4. In classical conditioning the CS no longer is followed by the US.
5. In operant conditioning lever pressing is no longer followed by food pellets.
6. Hence extinction is loss of a learned response due to removal of reinforcement.
_Source: NCERT Class 11 Psychology Ch 5 "Learning", p. 84, Extinction_
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