Can't mistake his body rhythm," when Dr. P. is watching television) and added documentary segments with Sacks and pathologist John Tighe working with the actual Dr. P.'s brain. They reveal that his condition was the result of Alzheimer's disease that atypically affected only one portion of his brain until its latter stages.
The author notes that it is impossible to mistake Dr. P.'s body rhythm when he watches television, and adds documentary segments featuring Sacks and pathologist John Tighe working with the actual Dr. P.'s brain. These segments reveal that his condition was caused by Alzheimer's disease, which affected only a portion of his brain until later stages.