
Altered States of Consciousness
Charles T. Tart (editor)
Combining the best of the humanistic and scientific traditions, this book covers the effects of drugs, yoga, self-hypnosis, mutual hypnosis, meditation, brainwave feedback, and dream consciousness. As the author states in his introduction: “The 1980s have been thought of as a conservative time. With respect to consciousness exploration by individuals in point of fact such exploration is still very much with us. It will stay with us, for better or worse, because of dissatisfaction with the limitations of our culture.”
About the author

Charles T. Tart
Charles T. Tart is an American psychologist and parapsychologist known for his psychological work on the nature of consciousness (particularly altered states of consciousness), as one of the founders of the field of transpersonal psychology, and for his research in parapsychology.
(Goodreads.com)