Which of the following is a conditioning procedure that is intended to suppress an undesired behavior by following it with the presentation of an aversive stimulus?

Extinction refers to the process of reducing a conditioned response by no longer reinforcing it. In this case, the behavior gradually diminishes as the reinforcement is removed, rather than being suppressed by an aversive stimulus. Thus, extinction is focused on the absence of reinforcement, not the introduction of discomfort.

Spontaneous recovery is the reappearance of a previously extinguished conditioned response after a period of non-exposure to the conditioned stimulus. This phenomenon does not involve the application of an aversive stimulus, but rather indicates a temporary resurgence of behavior that has been suppressed through extinction.

Negative reinforcement involves the removal of an aversive stimulus to strengthen a desired behavior. This principle encourages the continuation of a behavior because it alleviates discomfort, which is the opposite of punishment, where an aversive stimulus is introduced to reduce a behavior.

Discrimination is the ability to differentiate between similar stimuli and respond appropriately to each. It does not relate to the suppression of behavior through aversive means but rather involves recognizing and responding differently to various stimuli.