How to Change Your Mind: What the New Science of Psychedelics Teaches Us About Consciousness, Dying, Addiction, Depression, and Transcendence

binocular depth inversion illusion.

Instead, I looked the horse in the eyes—and promptly started to laugh, it was so ridiculous. “That’s when what had been a bad trip really turned. Now I had every sort of emotion, positive, negative, it didn’t matter. I thought about the [Syrian] refugees in Calais and started crying for them, and I saw that every emotion is as valid as any other. Y

Having let go of the rope of self and slipped into the warm waters of this worldly beauty—Bach’s sublime music, I mean, and Yo-Yo Ma’s bow caressing those four strings suspended over that envelope of air—I felt as though I’d passed beyond the reach of suffering and regret.

Carhart-Harris argues in the entropy paper that even a temporary rewiring of the brain is potentially valuable, especially for people suffering from disorders characterized by mental rigidity. A high-dose psychedelic experience has the power to “shake the snow globe,” he says, disrupting unhealthy patterns of thought and creating a space of flexibi

One of the most interesting things about a psychedelic experience is that it sharpens one’s sensitivity to one’s own mental states, especially in the days immediately following. The usual seamlessness of consciousness is disturbed in such a way as to make any given state—mind wandering, focused attention, rumination—both more salient and somewhat e

With Ken Kesey, the CIA had turned on exactly the wrong man. In what he aptly called “the revolt of the guinea pigs,” Kesey proceeded to organize with his band of Merry Pranksters a series of “Acid Tests” in which thousands of young people in the Bay Area were given LSD in an effort to change the mind of a generation. To the extent that Ken Kesey a

Hofmann also came to regard the youth culture’s adoption of LSD in the 1960s as an understandable response to the emptiness of what he described as a materialist, industrialized, and spiritually impoverished society that had lost its connection to nature. This master of chemistry—perhaps the most materialist of all disciplines—emerged from his expe

Who among the first generation of psychedelic researchers would dispute a word of this classic gust of Leary exuberance, circa 1963: “Make no mistake: the effect of consciousness-expanding drugs will be to transform our concepts of human nature, of human potentialities, of existence. The game is about to be changed, ladies and gentlemen. Man is abo

Pahnke had failed to mention that several subjects had struggled with acute anxiety during their experience. One had to be restrained and given an injection of Thorazine, a powerful antipsychotic, after he fled from the chapel and headed down Commonwealth Avenue, convinced he had been chosen to announce the news of the coming of the Messiah.

It suggests an interesting way to think about psychedelics: as a kind of “active placebo,” to borrow a term proposed by Andrew Weil in his 1972 book, The Natural Mind. They do something, surely, but most of what that is may be self-generated. Or as Stanislav Grof put it, psychedelics are “nonspecific amplifiers” of mental processes.)