[1] The Institute's areas of interest were initially listed as philosophy, psychology, theoretical physics, and ESP.
[9][10] The possibility of conscious insight during dreams had previously been treated with scepticism by some philosophers[11] and psychologists[12] and scientific skepticism continued after her book was published.
[10] In 1968, Green also published a collection of 400 first-hand accounts of out-of-body experiences for the benefit of scientists interested in studying the phenomena.
[15][16][17] Apparitions is a taxonomy of 'apparitions', or hallucinations in which the viewpoint of the subject was not ostensibly displaced, based on a collection of 1500 first-hand accounts.
[25] The track was entitled "In the Extreme" and consisted of readings by the author from her books, The Human Evasion, and Advice to Clever Children.