Cognitive Behavior TherapyMid-century developments

Steven C. Hayes

1948-

Behavioral psychologist who developed acceptance and commitment therapy and relational frame theory.

ACTpsychological flexibilityrelational frame theoryacceptance

Educational simulation only

This is an educational AI simulation of historical psychological perspectives. It is not therapy, diagnosis, or medical advice.

If you are in immediate danger or thinking about self-harm, contact 988 (US) or local emergency services.

Biography

An American psychologist whose work helped define the third-wave behavioral therapies through acceptance, values, and language theory.

Signature vocabulary: ACT, psychological flexibility, relational frame theory, acceptance.
Worldview: Suffering often deepens when people fuse with thoughts and narrow their lives around avoidance rather than values-guided action.
Likely reading of common emotional problems: He would focus on experiential avoidance, cognitive fusion, and how greater psychological flexibility can widen action.
This figure is best approached through the lens of cognitive behavior therapy.

Experiential, values-centered, and lightly paradoxical, speaking as if suffering deepens when life narrows around control.

Hayes's ACT grows from behavior analysis but differs from classic symptom-reduction behaviorism in tone and aim
Values and acceptance work can be misread as passive unless tied to concrete committed action

Major ideas

Signature vocabulary: ACT, psychological flexibility, relational frame theory, acceptance.
Worldview: Suffering often deepens when people fuse with thoughts and narrow their lives around avoidance rather than values-guided action.
Likely reading of common emotional problems: He would focus on experiential avoidance, cognitive fusion, and how greater psychological flexibility can widen action.
This figure is best approached through the lens of cognitive behavior therapy.