Acceptance and Commitment Therapy (ACT) is a form of experiential therapy, primarily developed by Steven C. Hayes, PhD. It is a research-based psychotherapeutic tool that is built on the older behavioral and cognitive treatments.
ACT is founded on the idea that humans will often inadvertently create problems in their lives when they avoid unwanted private experiences (e.g., thoughts, feelings, memories, bodily sensations). Experiential avoidance will frequently hinder a person's optimal ability to function in his/her relationships, on the job, or in the community. This in turn may prevent us from living the kind of valued life we had hoped for.
Through various desensitization and empowering exercises a person is gradually taken to a place that they can better live the life they had intended. For more information on ACT, visit the web site of the Association for Contextual Behavior Science.