Further blurring of the nature of my patient's relief was the fact that so much of cognitive processes are outside consciousness. Blindsightedness, a term that was coined by Lawrence Weiskrantz, an experimental psychologist at Oxford, draws the causal relationship between intervention and response into some degree of question. In the excellent anthology on the construct, Out of Mind: Varieties of Unconscious Processes, the various contributors greatly expand on the neuropathological turf staked out by Weiskrantz. Blindsightedness is involved not only in navigating through a crowded hallway or attending to visual clues on a television screen. Emotional processing and learning are also shaped unknowingly and mysteriously. The book's chapters are well written despite the technical nature of the material. Readers with particular interest in neurology will obviously find the most utility in this work. The book is well organized. Chapters are grouped around motifs of visual perception, attention and memory, emotion, and action.