Edward Jessup, a young psycho-physiologist, experiments with different states of consciousness, obsessed with an addiction to truth and knowledge. He injects hi

From its first publication in 1997, Altered State established itself as the definitive text on Ecstasy and dance culture. This new edition sees Matthew Collin c

'I was foolish enough to think that I was strong enough, and cheerful enough by nature, to avoid unhappiness. I was not yet old enough to see that I was in erro

What altered states of consciousness—the dissolution of feelings of time and self—can tell us about the mystery of consciousness. During extraordinary momen