During the Battle of Smolensk in the Second Word War, a soldier named Zazetsky sustained a severe head wound, causing "massive damage to the left occipito-parietal region of his brain." This injury shattered his whole perceptual world. His memory, his visual fields, his bodily perception, even his knowledge of bodily functioning--all break into fragments, causing him to experience the world (and himself) as constantly shifting and unstable.

Zazetsky coped with this fragmentation by writing a journal of his thoughts and memories as they occurred, day after day, for 20 years. He then arranged and ordered these entries, in an attempt to reconstruct his lost "self." From over 3000 pages of this journal material, the neurologist A. R. Luria has constructed this extended case history from which emerges a remarkable portrait of Zazetsky as a determined and courageous human being. Zazetsky's first-person account is interspersed with comments and descriptions by Luria himself, explaining the relevant structure and function of the brain.