This approach to recovery is called ‘Addictive Voice Recognition Therapy’, or AVRT. It was first developed by the founder of Rational Recovery, Jack Trimpey, in 1986. He defines the Addictive Voice (what he calls the AV) as ‘any thinking that supports or suggests the possible future use of alcohol or other drugs’. Trimpey carried out a study of 250 people and found that AVRT had a 65 per cent success rate.