Hallucinations

About this book

Have you ever seen something that wasn't really there? Heard someone call your name in an empty house? Sensed someone following you and turned around to find nothing? ---------- Hallucinations don't belong wholly to the insane. Much more commonly, they are linked to sensory deprivation, intoxication, illness, or injury. People with migraines may see shimmering arcs of light or tiny, Lilliputian figures of animals and people. People with failing eyesight, paradoxically, may become immersed in a hallucinatory visual world. Hallucinations can be brought on by a simple fever or even the act of waking or falling asleep, when people have visions ranging from luminous blobs of color to beautifully detailed faces or terrifying ogres. Those who are bereaved may receive comforting "visits" from the departed. In some conditions, hallucinations can lead to religious epiphanies or even the feeling of leaving one's own body. Humans have always sought such life-changing visions, and for thousands of years have used hallucinogenic compounds to achieve them. As a young doctor in California in the 1960s, Oliver Sacks had both a personal and a professional interest in psychedelics. These, along with his early migraine experiences, launched a lifelong investigation into the varieties of hallucinatory experience. Here, with his usual elegance, curiosity, and compassion, Dr. Sacks weaves together stories of his patients and his own mind-altering experiences to illuminate what hallucinations tell us about the organization and structure of our brains, how they have influenced every c…

Themes & subjects

About the author

Oliver Sacks

9 July 1933 – 2015-08-30

Oliver Sacks, M.D. was a physician, a best-selling author, and a professor of neurology at the NYU School of Medicine. The New York Times has referred to him as “the poet laureate of medicine.” He is best known for his collections of neurological case histories, including The Man who Mistook his Wife for a Hat, Musicophilia: Tales of Music and the Brain and An Anthropologist on Mars. Awakenings, his book about a group of patients who had survived the great encephalitis lethargica epidemic of the early twentieth century, inspired the 1990 Academy Award-nominated feature film starring Robert De Niro and Robin Williams. Dr. Sacks was a frequent contributor to the New Yorker and the New Yo…