Cognitive-Behavioral Therapy

Cognitive-behavioral therapy (CBT) emerged during the 1960s and 1970s from the independent contributions of Aaron T. Beck and Albert Ellis. Beck, initially working with depression, observed that depressed patients exhibited distorted thinking patterns — what he called 'automatic thoughts' — that maintained and worsened their emotional state. Ellis, for his part, developed Rational Emotive Behavior Therapy (REBT), based on the idea that it is not events that cause emotions, but irrational beliefs about those events. Both lines converged in an integrated model that recognizes the centrality of cognitive processes in psychopathology.

The core model of CBT posits a reciprocal relationship between thoughts, emotions, and behaviors: cognitive interpretations of a situation influence the emotional response, which in turn shapes behavior, and behavior generates new situations that reinforce or modify cognitions. This triad forms the basis of case formulation in CBT. Cognitive distortions — such as all-or-nothing thinking, catastrophizing, or personalization — are considered central maintaining factors of emotional disorders.

The main techniques of CBT include cognitive restructuring (identifying, challenging, and modifying distorted thoughts), behavioral experiments (testing catastrophic predictions against reality), graded exposure (progressively confronting feared stimuli), behavioral activation (increasing rewarding activities in depression), and skills training (problem-solving, emotion regulation). Sessions are structured, collaborative, and goal-oriented, typically lasting 12 to 20 sessions.

CBT is the psychotherapeutic approach with the most extensive evidence base. Successive meta-analyses have demonstrated its efficacy for depression, anxiety disorders, obsessive-compulsive disorder, post-traumatic stress disorder, eating disorders, and many other clinical problems (Butler et al., 2006; Hofmann et al., 2012). Its effects are comparable to medication for many disorders, with the advantage of significantly lower relapse rates in the long term.