05/07/2022
How do psychedelics work?
According to Dr. Jerrold Rosenbaum, the director of the newly created Center for the Neuroscience of Psychedelics at Massachusetts General Hospital and former psychiatrist-in-chief at MGH, the short answer is, "Psychedelics induce the brain to change transiently in ways that appear to allow a reset to take place and permit alterations in previously 'stuck' ways of feeling and thinking about things." There are likely several ways in which psychedelics can accomplish this: new connections are briefly made in neural networks while the resting state of the brain (or the "default mode network") loses connectivity — then it restores itself. "It’s like rebooting your computer." This is how stuck patterns of thinking are thought to shift. Also, new connections between neurons are formed, a process that is called neuroplasticity. Finally, the psychedelic drugs themselves can put patients into a transient state where they can better process memories, feelings, and past trauma, and can "reemerge with a new perspective on them that is freeing and healing" — also called psychedelic-assisted therapy.
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