“…It is divided into six subscales: (i) intensity, which reflects the strength of the overall experience; (ii) somesthesia, which assesses somatic effects including interoception, visceral, and tactile effects; (iii) affect, which assesses comfort, emotional, and affective changes; (iv) perception, which assesses visual, auditory, gustatory, and olfactory effects; (v) cognition, which assesses changes in thoughts; and (vi) volition, which is related to the subject’s capacity to willfully interact with his/her ‘self’ (Riba, Rodri, et al, 2001; Strassman et al, 1994). We used the validated HRS version translated to Brazilian Portuguese (Mizumoto et al, 2011). Participants completed the HRS at the end of the dosing session (approximately 4 hours after ayahuasca or placebo ingestion).…”