In his experiments, Pavlov found that often occurred after a conditioned response was extinguished if the tone was presented again after a few hours without the CS or the US.

Spontaneous recovery

Explanation:

In his experiments, Pavlov found that spontaneous recovery often occurred after a conditioned response was extinguished if the tone was presented again after a few hours without the CS or the US.

Spontaneous recovery is the reappearance after a pause of an extinguished conditional response, it is found that spontaneous recovery can occur after a period of not being exposed to the conditioned stimulus. for example, an experimental rat has been taught to push a lever when a bell is rung,later on this particular rat is taught to push the lever when a light is flashed. the rat stop pushing the lever when the bell is rung because he has be recondition to when light is flashed , however, weeks later, when bell is rung he beings to push the lever again.

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