Background: Mindfulness and compassion are therapeutically relevant and can be increased through different forms of meditation practices. However, meditation practice needs time and commitment. These resources are often limited in patients with mood disorders. Therefore, efficacious remedies that increase mindfulness and compassion could provide therapeutic options. This study aimed to investigate the relationship between psychedelic experiences induced by an ayahuasca-inspired N,N-dimethyltryptamine (DMT)/harmine formulation on mindfulness and compassion in healthy subjects. Methods: This study applies a randomized, double-blind, placebo-controlled within-subjects design in a laboratory setting with 31 healthy participants. Each subject received a formulation comprising DMT + harmine, harmine + placebo, and placebo only on three different study days. Primary outcomes were mindfulness (MINDSENS) and compassion (SOCS). Results: A significant effect of the drug on mindfulness (p < 0.05, F = 3.41), self-compassion (SOCS-S; p < 0.01, F = 7.53), and compassion with others (SOCS-O; p < 0.05, F = 3.37) 1 day post-treatment was found. Significant differences between the high- and low-sensitivity groups were found for mindfulness (p < 0.05, F = 6.54), self-compassion (p < 0.05, F = 4.21), and compassion with others (p < 0.05, F = 4.42). Conclusions: In line with previous studies on traditional botanical ayahuasca, our findings support the notion that the DMT/harmine formulation might have therapeutic potential through its ability to acutely enhance mindfulness and compassion. Continuing studies in therapeutic settings are needed to further elucidate the mechanisms of action of ayahuasca-inspired formulations.
Aicher et al. (Thu,) studied this question.