Differentiate spontaneous recovery and extinction?

Spontaneous recovery is the reappearance of a previously extinguished response after a period of time has passed without reinforcement. This means that the behavior that was previously extinguished suddenly reappears without any additional training or reinforcement.

On the other hand, extinction is the process of weakening a behavior by no longer reinforcing it. This means that the behavior that was previously reinforced is no longer followed by the reinforcing stimulus, leading to a decrease in the frequency of that behavior over time.

In summary, spontaneous recovery is the reappearance of an extinguished behavior after a period of time, while extinction is the process of weakening a behavior by no longer reinforcing it.