Informed consent for psychedelic-assisted psychotherapy (PAP) is possible and need not be especially difficult if reasonable approaches are used. A central but overlooked risk in PAP is the patient's heightened susceptibility to environmental influence during the session, termed epistemic vulnerability. This vulnerability should be disclosed as part of informed consent in all cases. The paper argues that a nondirective therapeutic approach—where patients manage their own experience—is more ethically supportable than other approaches, partly because it prioritizes autonomous transformation. Analogous concerns from regular psychotherapy are addressed through a process view of consent, which can help navigate the complexities of ongoing consent in PAP.
Psychedelic experiences, though linked to therapeutic benefits for depression and other mood disorders, remain poorly understood. This paper argues that the epistemic dimensions—how knowledge and understanding are gained—should be examined more closely. It proposes a tripartite framework of three phenomenological regularities: fascination, revelation, and improvisation, relating them to everyday epistemic phenomena like curiosity, insight, and intellectual playfulness. Using first-person accounts, the author argues that psychedelic experience, while extraordinary, is best understood as a modification of familiar cognitive processes. The paper concludes with recommendations for new clinical measurement approaches in psychotherapeutic settings.