Abstract
Acceptance and Commitment Therapy (ACT) in panic disorder with agoraphobia: a case study In recent years, the Acceptance and Commitment Therapy (ACT) was growing like a radical behaviorist conceptual altemative to cognitive-behavioral models of anxiety disorders, considering that the psychological problems they are a set of sociocultural practices in context. Starting from this basis, we presented a case study enlightening the aplication of ACT in a male user diagnosed of panic disorder with agoraphobia. After twelve treatment sessions, the user was discharged for recovery. The obtained results they are complex and contradictory and not easily explained for exclusively quantitative approaches to behavioral change and the cognitive-behavioral models about panic disorder. To the light of the obtained results they are presented several conceptual and methodological accounts from the setting of ACT theory about the process of behavioral change, like a conceptual alternative to cognitive-behavioral models about panic.