Question:medium

During extinction, the __ is consistently omitted and the __ undergoes gradual reduction.

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Extinction weakens the conditioned response, but spontaneous recovery may occur if the CS is reintroduced after a rest period.
Updated On: Feb 11, 2026
  • CS, UCR
  • UCS, UCR
  • UCS, CR
  • CS, CR
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The Correct Option is C

Solution and Explanation

Within classical conditioning, extinction happens when the conditioned stimulus (CS) is presented repeatedly without the unconditioned stimulus (UCS). Gradually, the conditioned response (CR) lessens as the learned association weakens.

  • Example: If a bell (CS) rings without food (UCS) following, salivation (CR) decreases.
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