The sensory deprivation tank (also known as an isolation tank or a floatation tank) was invented in 1954 by John C. Lilly. Lilly (1915-2001), as well as being interested in the effects of sensory deprivation… View Post

Ketamine is a dissociative drug, meaning that it produces feelings of dissociation – dissociation from one’s environment and even dissociation from one’s own body. The drug is used in human and veterinary medicine, both as… View Post

Hypnagogia is the experience you have when you are falling asleep (but not quite asleep). When you’re waking up (but not quite awake) this is known as hypnapompia. Other terms for hypnagogia include: ‘visions of half-sleep’, ‘the borderland… View Post

The Voynich Manuscript dates to the early 15th century and it is believed to have come from northern Italy. It is not named after the author (since the author is unknown) but is named after the… View Post

Cave paintings indicate a huge turning point in the evolution of the human race. They indicate the emergence of creativity and imagination. The origins of art distinguished us from all other animals and it reflects… View Post