Patient had encephalitis lethargica, took the patient a period of several hours to complete the motion of scratching his head, but to the patient the movement was in normal time...
Excerpt from Awakenings by Oliver Sacks
For example, in one incident in the book, Sacks notices a patient holding his arm out rigidly in front of him. Awhile later he happens to look at the patient again, and after at first thinking he hasn't moved, he realizes the patient's hand is maybe an inch or two closer to his head. After a great deal more time passes, the hand makes contact with the head. Sacks has the impression that if one could observe the movement with time lapse photography, it would look like someone reaching up to scratch his head.
During a subsequent period when the patient is more functional and is able to communicate, Sacks asks him about this super slow motion arm movement, and the patient confirms that he was indeed scratching his head. To him, though, it was not in slow motion. He experienced it as if the motion had taken place at a normal speed, and not taken the hours that it actually had.
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