How Psychedelic-Assisted Treatment Works in the Bayesian Brain

Area of Science:

• Neuroscience
• Psychiatry
• Psychology

Background:

• Psychedelics are being re-examined for clinical applications.
• Psychedelic-assisted treatment shows promising results.
• The synergy between pharmacological and psychotherapeutic interventions is key.

Purpose of the Study:

• To explain the interaction between pharmacological and psychological effects in psychedelic-assisted treatment.
• To propose a model for how psychedelics enhance psychotherapy.

Main Methods:

• Building on the relaxed beliefs under psychedelics (REBUS) hypothesis and Wampold's contextual model.
• Theoretically examining how psychedelics interact with psychotherapy.

Main Results:

• Psychedelics amplify common factors in psychotherapy.
• Psychedelics reduce the precision of high-level predictions, making them more open to revision.
• Psychotherapy provides input that facilitates the revision of these predictions.

Conclusions:

• Psychedelics enhance psychotherapy by making cognitive processes more flexible.
• This interaction accelerates the revision of maladaptive predictions, leading to symptom relief.
• Psychedelic-assisted therapy leverages pharmacological effects to boost psychotherapeutic outcomes.