|
Systematic desensitization, also known as graduated exposure therapy is a type of behavior therapy used in the field of psychology to help effectively overcome phobias and other anxiety disorders. More specifically, it is a form of counter conditioning, a type of Pavlovian therapy developed by South African psychiatrist, Joseph Wolpe. In the 1950s, Wolpe discovered that the cats of Wits University could overcome their fears through gradual and systematic exposure.〔Dubord, Greg. "Part 12. Systematic desensitization." Canadian Family Physician 57 (2011): 1299+. Print.〕 The process of systematic desensitization occurs in three steps. The first step of systematic desensitization is the identification of an anxiety inducing stimulus hierarchy. The second step is the learning of relaxation or coping techniques. Once the individual has been taught these skills, he or she must use them in the third step to react towards and overcome situations in the established hierarchy of fears. The goal of this process is for the individual to learn how to cope with, and overcome the fear in each step of the hierarchy. ==Three steps of desensitization== There are three main steps that Wolpe identified to successfully desensitize an individual. #Establish anxiety stimulus hierarchy. The individual must first identify the items that are causing anxiety. Each item that causes anxiety is given a subjective ranking on the severity of induced anxiety. If the individual is experiencing great anxiety to many different triggers, each item is dealt with separately. For each trigger or stimuli, a list is created to rank the events from least anxiety provoking to the greatest anxiety provoking. #Learn coping mechanism or incompatible response. Relaxation training, such as meditation, is one type of coping strategy. Wolpe taught his patients relaxation responses because it is not possible to be both relaxed and anxious at the same time. In this method, patients practice tensing and relaxing different parts of the body until the patient reaches a state of serenity.〔Wolpe, J. (1958). Psychotherapy by reciprocal inhibition. Stanford, CA: Stanford University Press.〕 This is necessary because it provides the patient with a means of controlling their fear, rather than letting it increase to intolerable levels. Usually only a few sessions are needed for a patient to learn the appropriate coping mechanisms. Additional coping strategies include anti-anxiety medicine and breathing exercises. Another means of relaxation is cognitive reappraisal of imagined outcomes. The therapist might encourage subjects to examine what they imagine happening when exposed to the anxiety-inducing stimulus and allowing for the client to replace the imagined catastrophic situation with imagined positive outcomes. #Connect the stimulus to the incompatible response or coping method through counter conditioning. In this step the client completely relaxes and is then is presented with the lowest item that was placed on their hierarchy of severity of anxiety. When the client has reached a state of serenity again after being presented with the first stimuli, the second stimuli that should present a higher level of anxiety is presented. Again, the individual practices the coping strategies learned. This activity is completed until all items of the hierarchy of severity of anxiety is completed without inducing anxiety in the client. If at any time during the exercise the coping mechanisms fail or the client fails to complete the coping mechanism due to severe anxiety, the exercise is stopped. Once the individual is calm, the last stimuli that was presented without inducing anxiety is presented again and the exercise is continued.〔Mischel, W., Shoda, Y. & Ayduk, O. Introduction to Personality. John Wiley & Sons, Inc., 2008.〕 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Systematic desensitization」の詳細全文を読む スポンサード リンク
|