Behavior modification refers to behavior-change procedures that were employed during the 1970s and early 1980s. Based on methodological behaviorism, overt behavior was modified with presumed consequences, including artificial positive and negative reinforcement contingencies to increase desirable behavior, or administering positive and negative punishment and/or extinction to reduce problematic behavior. For the treatment of phobias, habituation and punishment were the basic principles used in flooding, a subcategory of desensitization.
Applied behavior analysis (ABA)—the application of behavior analysis—is based on radical behaviorism, which refers to B. F. Skinner's viewpoint that cognition and emotions are covert behavior that are to be subjected to the same conditions as overt behavior.