I got this book from a used bookstore in my neighborhood this book first published in 1969 is a collection of readings about altered states of consciousness some of the papers report quantitative information such as an electroencephalograhic study of yogis. Altered states of consciousness a book of readings edited by charles t tart chichester john wiley sons 1969 pp 575 price 88s volume 116 issue 530 i atkin. Altered states of consciousness a book of readings inproceedingsdeikman1969alteredso titlealtered states of consciousness a book of readings authora deikman and m h erickson and a ludwig year1969 . The study of the nature of human consciousness a dormant and often taboo topic in psychology is once again developing into a respected field of inquiry this is the first book to provide a broad scientific point of view for the investigation of a variety of special states of consciousness