Third wave CBT therapies such as Dialectical Behavioural Therapies (DBT) move from the CBT focus on thought content to the process of thoughts. DBT was developed in the 1990’s and promotes a non-judgemental acceptance of thoughts whilst maintaining a commitment to behavioural change. Buddhist teaching is influential in the development of Mindulness and Acceptance and Commitment Therapy. The atmosphere of acceptance removes guilt and blame and the therapeutic atmosphere developed and maintained by therapists working in group based and individual interventions enhances this. Change behaviour is embraced despite thoughts and experiences.

Third wave CBT interventions have proven results in treating borderline personality disorders and enhancing the development of therapeutic relationships previously found difficult to maintain. There is clear evidence that these therapies have found success in treating schizophrenia, eating disorders, depression and mood disorders.