Systematic esensitization is a type of behavioral therapy used in the field of psychology to help effectively overcome phobias and other anxiety disorders. More specifically, it is a type of Pavlovian therapy / classical conditioning therapy developed by a South African psychiatrist, Joseph Wolpe. To begin the process of systematic desensitization, one must first be taught relaxation skills in order to control fear and anxiety responses to specific phobias. Once the individual has been taught these skills, he or she must use them to react towards and overcome situations in an established hierarchy of fears. The goal of this process is that an individual will learn to cope and overcome the fear in each step of the hierarchy, which will lead to overcoming the last step of the fear in the hierarchy. Systematic desensitization is sometimes called graduated exposure therapy.