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Movies about Alien Hand Syndrome (AHS)

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Alien hand syndrome (AHS) is a rare neurological disorder that causes hand movement without the person being aware of what is happening or having control over the action. The afflicted person may sometimes reach for objects and manipulate them without wanting to do so, even to the point of having to use the healthy hand to restrain the alien hand.
Alien hand syndrome is best documented in cases where a person has had the two hemispheres of their brain surgically separated, a procedure sometimes used to relieve the symptoms of extreme cases of epilepsy. It also occurs in some cases after brain surgery, stroke, infection, tumor, aneurysm and specific degenerative brain conditions such as Alzheimer's disease and Creutzfeldt–Jakob disease. Other areas of the brain that are associated with alien hand syndrome are the frontal, occipital and parietal lobes.
The first known case described in the medical literature appeared in a detailed case report published in German in 1908 by the preeminent German neuro-psychiatrist, Kurt Goldstein. In this paper, Goldstein described a right-handed woman who had suffered a stroke affecting her left side from which she had partially recovered by the time she was seen. However, her left arm seemed as though it belonged to another person and performed actions that appeared to occur independent of her will.
The patient complained of a feeling of "strangeness" in relationship to the goal-directed movements of the left hand and insisted that "someone else" was moving the left hand, and that she was not moving it herself. Goldstein reported that, as a result of this report, "she was regarded at first as a paranoiac." When the left hand grasped an object, she could not voluntarily release it. The somatic sensibility of the left side was reported to be impaired, especially with aspects of sensation having to do with the orienting of the limb. Some spontaneous movements were noted to occur involving the left hand, such as wiping the face or rubbing the eyes; but these were relatively infrequent. Only with significant effort was she able to perform simple movements with the left arm in response to spoken command, but these movements were performed slowly and often incompletely even if these same movements had been involuntarily performed with relative ease before while in the abnormal 'alien' control mode.
In most cases, classic alien-hand signs derive from damage to the medial frontal cortex, accompanying damage to the corpus callosum. In these patients the main cause of damage is unilateral or bilateral infarction of cortex in the territory supplied by the anterior cerebral artery or associated arteries. Oxygenated blood is supplied by the anterior cerebral artery to most medial portions of the frontal lobes and to the anterior two-thirds of the corpus callosum, and infarction may consequently result in damage to multiple adjacent locations in the brain in the supplied territory. As the medial frontal lobe damage is often linked to lesions of the corpus callosum, frontal variant cases may also present with callosal form signs. Cases of damage restricted to the callosum however, tend not to show frontal alien-hand signs.
Damage to the corpus callosum can give rise to "purposeful" actions in the sufferer's non-dominant hand (an individual who is left-hemisphere-dominant will experience the left hand becoming alien, and the right hand will turn alien in the person with right-hemisphere dominance).
One patient with the "frontal" form of alien hand who would reach out to grasp onto different objects (e.g., door handles) as he was walking was given a cane to hold in the alien hand while walking, even though he really did not need a cane for its usual purpose of assisting with balance and facilitating ambulation. With the cane firmly in the grasp of the alien hand, it would generally not release the grasp and drop the cane in order to reach out to grasp onto a different object.

Alien Hand, Discovery
Length: 8 minutes

Discovery channel documentary

Left side alien hand
Length: 3 minutes

Woman Attacked By Her Own Hand! A Look Into Alien Hand Syndrome...
Length: 5 minutes

Yes, alien hand syndrome is actually a thing. It's a rare neurological disorder that causes hand movement without the person knowing what's happening. Here's what it's like to have alien hand syndrome, according to a woman who has the disorder.

Alien Hand Syndrome (Excerpts)
Length: 3 minutes

My Alien Hand Syndrome (Warning: Creepy!)
Length: 8 minutes

I discovered that I had alien hand syndrome in my sleep when I reviewed camera footage from my bedroom one day. Warning, this is pretty creepy! This afflicted me as a teenager while I was awake, and I thought I had gotten over it, but apparently it is still happening.

My Alien Hand Syndrome Pt. 2 - The Nightly Struggle
Length: 7 minutes

My nightly struggle with my alien hand and some remedies that I have tried.

Alien-Hand Syndrome
Length: 3 minutes

Patient performing the Block Design test. The hands are fighting about control of the blocks. Later, we had arranged three of the four blocks. Even after 1 min of trying, his right hand is not able to insert the missing block correctly. The left hand can do so within 3 s. See Brain and Cognition 77 (2011) 138–150

Woman with Alien Hand Syndrome
Length: 2 minutes