Dr Katherine MacLean - Psilocybin & Personality Change

Psilocybin therapy can induce profound mystical experiences that correlate with measurable, long-term increases in openness, a fundamental personality trait. These shifts in openness often serve as a positive outcome of high-dose psilocybin sessions, particularly when individuals report deep, mystical contact with reality during their experience. This research indicates that substances such as psilocybin have the potential for therapeutic application by facilitating fundamental shifts in how people process experiences and relate to their own consciousness. Beyond clinical interventions, these experiences highlight an intersection between contemplative practices and neurobiology. Similar decreases in self-referential processing - the constant, habitual, and self-absorbed internal narrative - are observed in brain activity during both meditative states and psychedelic experiences. This commonality underscores potential for future integrative approaches to mental healthcare that leverage both psychedelic medicine and meditative techniques to improve well-being.