Alien Hand Syndrome


(Youtube Direkthand)

Über das Alien Hand Syndrome habe ich (denke ich) in Oliver Sacks „Der Mann, der seine Frau mit einem Hut verwechselte“ gelesen, ein Buch, das ich sowieso immer wieder einfach nur empfehlen kann. Dieses Syndrom ist genau das, was man sich darunter vorstellt: eine der beiden eigenen Hände macht unabsichtlich Dinge, die sie nicht tun sollte und zwar gezielt, so als ob sie einen eigenen Willen entwickelt hätte.

MSNBC hat da einen schönen Artikel drüber und ich würde das hier ja nicht „Alien Hand Syndrome“ nennen, sondern „Evil Hand Syndrome“ und am besten erklärt man das ja sowieso mit der Evil Hand-Szene aus Evil Dead II, ein paar der Storys passen da jedenfalls ziemlich gut dazu. Eine andere aber nicht: Die Hand eines 72jährigen kroch nachts selbständig unter die Decke und – wichste.

"An alien hand is an arm and hand that moves when the person to whom that arm belongs does not intend it to move," says Dr. Ken Heilman, a neurologist at the University of Florida College of Medicine in Gainesville, Fla. Heilman goes on to note that there are many neurological conditions that cause an arm to move unintentionally -- like seizures or tremors, and movement disorders such as chorea, dystonia and athetosis. Here's the difference: In each of those cases, if the arm moves, it's pretty much just flailing about purposelessly, "but with an alien hand, the movement appears to be purposeful." Creepy.

Heilman recalls one patient whose hands actually fought over fashion: Her right hand took a pair of red shoes out of the closet. Her left hand -- the "alien" hand -- pulled the red shoes out of her right hand, put them back and picked up a pair of blue shoes. When the right hand went again for the red shoes, the left hand slammed the closet door on the right hand. […]

In one recorded case of alien hand syndrome, while a 67-year-old man slept, his hand did not; as a 1997 medical journal article reports, his hand "crept and crawled, especially at night, which caused him to awaken by grasping his collar." He solved his problem by wearing an oven mitt as he slept. But that guy had it easy. According to a 2000 journal article, a 73-year-old man's alien hand had a humiliating favorite hobby: masturbation.

When one hand develops a mind of its own (via Boing Boing)