From Relaxed Beliefs Under Psychedelics (REBUS) to Revised Beliefs After Psychedelics (REBAS): Preliminary Development of the RElaxed Beliefs Questionnaire (REB-Q) - Richard J. Zeifman; Meg J Spriggs; Hannes Kettner; Taylor Lyons; Fernando Rosas; Pedro Mediano; David Erritzoe; Robin Carhart-Harris (PsyArXiv, 2022)