This is a fascinating question but it is an empirical question meaning we need to test it with data. My guess is that at least among some people psychedelics lead to increased altruism. But there are likely many cases where there is no change, and cases where altruism is decreased. And this likely depends on many factors other than the psychedelic. We did find claims of increased long terms altruism in high dose compared to trivial dose psilocybin under double blind conditions as part of a “spiritual practices” program backdrop ( https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5772431/ ). However we need more work to see if this holds up to more behavioral evidence. I will say the picture on effects on authoritarianism is inconclusive and so far this is not good evidence for this, as I described in this paper with David Yaden: https://www.scientificamerican.com/article/theres-no-good-evidence-that-psychedelics-can-change-your-politics-or-religion/ .
This is a fascinating question but it is an empirical question meaning we need to test it with data. My guess is that at least among some people psychedelics lead to increased altruism. But there are likely many cases where there is no change, and cases where altruism is decreased. And this likely depends on many factors other than the psychedelic. We did find claims of increased long terms altruism in high dose compared to trivial dose psilocybin under double blind conditions as part of a “spiritual practices” program backdrop ( https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5772431/ ). However we need more work to see if this holds up to more behavioral evidence. I will say the picture on effects on authoritarianism is inconclusive and so far this is not good evidence for this, as I described in this paper with David Yaden: https://www.scientificamerican.com/article/theres-no-good-evidence-that-psychedelics-can-change-your-politics-or-religion/ .