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Cognitive behavioural therapy (CBT)

In the 1950s, psychoanalysis was the main modality of psychotherapy. Behavioural models of psychotherapy started to assume a more central role in psychotherapy in the 1960s. Aaron T. Beck, a psychiatrist trained in a psychoanalytic tradition, set out to test the psychoanalytic models of depression empirically and found that conscious ruminations of loss and personal failing were correlated with depression. He suggested that distorted and biased beliefs were a causal factor of depression, publishing an influential paper in 1967 after a decade of research using the construct of schemas to explain the depression. Beck developed this empirically supported hypothesis for the cause of depression into a talking therapy called cognitive behavioral therapy (CBT) in the early 1970s.