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In page Cognitive behavioral therapy:

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Although the early behavioral approaches were successful in many so-called neurotic disorders, they had little success in treating depression.[1][2][3] Behaviorism was also losing popularity due to the cognitive revolution. The therapeutic approaches of Albert Ellis and Aaron T. Beck gained popularity among behavior therapists, despite the earlier behaviorist rejection of mentalistic concepts like thoughts and cognitions.[1] Both of these systems included behavioral elements and interventions, with the primary focus being on problems in the present.[citation needed]