Both ego-dissolution and connectedness during a psychedelic experience are associated with a higher chance of therapeutic improvement, but they affect people differently. Ego-dissolution tends to trigger psychological change that typically does not last beyond the psychedelic experience, while connectedness can be more sustained and is linked to several positive, potentially therapeutic feelings. A mixed-methods systematic review of 15 studies (2,182 participants) synthesized findings from four databases. The results suggest that emphasizing ego-dissolution during preparation and connectedness during integration may improve psychedelic therapy models, with broader implications for mental health practice.
The majority of autistic participants who completed an online survey reported that their most impactful psychedelic experience reduced psychological distress (82%) and social anxiety (78%) and increased social engagement (70%). A substantial minority (20%) reported undesirable effects such as increased anxiety, with some describing the experience as among the most negatively impactful of their lives. The only substantial predictor of reduced distress was increased psychological flexibility. The findings come from a non-experimental design with biased sampling, so caution is warranted.