Name That Therapy V

Name this therapy/CBT treatment:

THIS THERAPY identifies the cognitions, emotions and physiological arousal that accompany a fear-inducing stimulus, and attempts to break the pattern of escape that strengthens the fear response through measured exposure to progressively stronger stimuli until habituation is reached. The technique involves the creation of a program of steadily escalating steps or challenges, which can be explicit or implicit, that work towards a final goal representing a ‘non-phobic’ behavior. The patient then voluntarily moves through the steps with a means of terminating each step which is under voluntary control.

Answer in comments or at wikipedia, source of the text.