Dr Robin Carhart-Harris - A Unified Model of the Brain Action of Psychedelics

Psychedelic compounds are modeled as mechanisms for altering brain functioning through 5-HT2AR agonism. This action promotes neuroplasticity, cognitive and psychological flexibility, and the reduction of ingrained behavioral patterns. Stress acts as a key inducer of 5-HT2AR functioning, which helps adapt to complex or negative environments. Therapeutic success depends on a hybrid approach where pharmaceutical intervention is integrated with psychological guidance. A focus on emotional breakthroughs, the normalization of negative perceptions, and the subsequent integration of these experiences are central to the healing potential of psychedelic-assisted therapy. The brain's state moves dynamically between rigidity and plasticity, with these states being pivotally influenced by external supports and the specific context of the experience.