Flooding, sometimes referred to as in vivo exposure therapy, is a form of behavior therapy and desensitization—or exposure therapy—based on the principles of respondent conditioning. As a psychotherapeutic technique, it is used to treat phobia and anxiety disorders including post-traumatic stress disorder. It works by exposing the patient to their painful memories, with the goal of reintegrating their repressed emotions with their current awareness. Flooding was invented by psychologist Thomas Stampfl in 1967. It is still used in behavior therapy today. Flooding is a psychotherapeutic method for overcoming phobias. In order to demonstrate the irrationality of the fear, a psychologist would put a person in a situation where they would face their phobia. Under controlled conditions and using psychologically-proven relaxation techniques, the subject attempts to replace their fear with relaxation. The experience can often be traumatic for a person, but may be necessary if the phobia is causing them significant life disturbances. The advantage to flooding is that it is quick and usually effective. There is, however, a possibility that a fear may spontaneously recur. This can be made less likely with systematic desensitization, another form of a classical condition procedure for the elimination of phobias. "Flooding" works on the principles of classical conditioning or respondent conditioning—a form of Pavlov's classical conditioning—where patients change their behaviors to avoid negative stimuli. According to Pavlov, people can learn through associations, so if one has a phobia, it is because one associates the feared stimulus with a negative outcome. Flooding uses a technique based on Pavlov's classical conditioning that uses exposure. There are different forms of exposure, such as imaginal exposure, virtual reality exposure, and in vivo exposure. While systematic desensitization may use these other types of exposure, flooding uses in vivo exposure, actual exposure to the feared stimulus.
Ossama Mohamed Salah El-Dien El-Sayed Ibrahim Khalaf