Palm minimization: An unusual case of Alien Hand Syndrome
In a previous blog I briefly overviewed Alien Hand Syndrome. Since writing that blog I came across an interesting case of alien hand syndrome published in a 2000 issue of the American Journal of Physical Medicine and Rehabilitation by Dr. B. Hai and Dr. I. Odderson. They reported an unusual case in which their patient had a right hemispheric stroke and subsequently experienced what the authors described as embarrassing manifestations of Alien Hand Syndrome in the form of involuntary masturbation. The case involved a 73-year old man who was brought into a hospital emergency ward by his wife because of a sudden loss of movement in the left-hand side of his body (including a slight droop on the left-hand side of his face), slurred speech and poor balance. Furthermore, he could stand if helped but was unable to walk unaided. The man had obviously had a stroke but four days later he started to experience involuntary movements of his left arm and claimed his left hand “has a mind of his own”. The paper reported that:
“He developed a tonic grasp reflex with inability to release. He also had a tendency to reach and grasp onto objects with the left hand, such as the telephone cord or the remote control for the television, and was unable to release despite verbal commands. He would persistently grab his comb or fix the collar of his shirt. He also demonstrated difficulty performing bimanual activities, such as eating”
Most worryingly, the man’s wife expressed extreme concern when her husband’s left hand would expose his genitals and start to masturbate in public. The involuntary masturbation happened on numerous occasions when talking with the nurses and doctors in the hospital, and only ever occurred with his left hand (even though the man was right-handed). The man denied that he had any history of “excessive self-stimulation, sexual dysfunction, or exhibitionism”. While in hospital, the man was dismayed and frustrated that he was unable to stop his left hand stimulating his genitals in front of other people. The authors reported that:
“A clinical impression of [Alien Hand Syndrome] was made, and magnetic resonance imaging of the brain showed an acute infarct [dead tissue] in the medial right frontal lobe [of his brain] in the anterior cerebral artery distribution involving the right anterior cingulate gyrus and the corpus callosum. After [three weeks] of acute inpatient rehabilitation, the patient was able to walk with a standard walker and negotiate stairs with rails with contact guard assist. He also began to use his left hand for bimanual activities. He was subsequently discharged to home with his family”.
After a month of treatment, the man was able to walk again unassisted but his left hand was still not under his own control (and telling the medical staff that his hand “still has a mind of his own and won’t turn things loose”). However, the good news was that the involuntary masturbation in public subsided and eventually ceased. The authors of the paper claim this is a very rare case because their patient displayed “an unusual and disturbing manifestation of uncontrolled involuntary genital fondling with the nondominant, apraxic hand and with mirroring hand movements during eating”. The authors also noted that the involuntary movements of the man’s left hand never occurred while they were carrying out medical tests and suggested that their findings indicate “the possibility of the presence of a dexterous ‘alien’ mode of control that can be distinguished from a more clumsy and slow ‘voluntary’ mode of control”. Although there is no known treatment for AHS, as I noted in my previous blog on the topic, the symptoms can be minimized and managed to some extent by keeping the affected hand occupied and involved in a task (e.g., by giving it an object to hold in its grasp). This would seem to explain why the man never masturbated while undergoing medical tests (i.e., his hands were being occupied). The authors also noted that:
“So far, at least two types of [Alien Hand Syndrome] have been described. The callosal type, as seen in our patient (lesion involving the corpus callosum with or without frontal damage), is characterized by frequent intermanual conflict and apraxia of the affected limb. The frontal type (lesion involving the left mediofrontal and callosal) is associated with dominant hand grasp reflex, compulsive movements (such as groping), restraining actions, and compulsive manipulation of tool [Feinberg, Schindler & Flanagan, 1992]”.
As I noted in my previous blog on AHS, research indicates that AHS sufferers often personify the alien hand and may believe the hand is ‘possessed’ by some other spirit or alien life form. Their hands may even appear to act in opposition to each other (such as when AHS sufferers who are also cigarette smokers put a cigarette in their mouth to set it alight, only for the alien hand to pull it out and throw the cigarette away). Such behaviour is an example of ‘intermanual conflict’ and has been given the name ‘diagnostic ideomotor apraxia’.
A number of published papers have reported that involuntary masturbation can be associated with other conditions. For instance, it has been associated with temporal lobe epilepsy. Dr. M. Cherian reported the case of excessive masturbation in a young girl in a 1997 issue of the European Journal of Pediatrics. However, until the publication of this case of AHS, it had not ever been associated with having a stroke. Dr. Hai and Dr. Odderson conclude:
“Although [Alien Hand Syndrome] is a rare phenomenon, this condition should be considered in patients who present with a feeling of alienation of one or both upper limbs accompanied by complex purposeful involuntary movement. It must be differentiated from limb neglect and anosognosia, which present with dissociation from the limb as perceived object (i.e., where the limb is not perceived as a part of the “self”), but without involuntary movement and without dissociation from control over purposeful complex action of the affected limb (i.e., where the actions of the limb are perceived as self-generated). Further studies are required to elucidate a definite anatomical explanation that can lead to accurate diagnosis, specific treatment, and rehabilitation of these patients”
Dr Mark Griffiths, Professor of Gambling Studies, International Gaming Research Unit, Nottingham Trent University, Nottingham, UK
Biran, I. & Chatterjee, A. (2004). Alien Hand Syndrome. Archives of Neurology, 61, 292-294.
Cherian, M.P. (1997). Excessive masturbation in a young girl: A rare presentation of temporal lobe epilepsy. European Journal of Pediatrics, 156, 249.
Doody, R.S. & Jankovic, J. (1992). The alien hand and related signs. Journal of Neurology, Neurosurgery and Psychiatry, 55, 806-810.
Feinberg, T.E., Schindler, R.J. & Flanagan, N.G. (1992). Two alien hand syndromes. Neurology, 42, 19-24.
Hai, B.G.O., & Odderson, I.R. (2000). Involuntary masturbation as a manifestation of stroke-related alien hand syndrome. American Journal of Physical Medicine & Rehabilitation, 79, 395-398.
Jacome, D.E. & Risko, M.S. (1983). Absence status manifested by compulsive masturbation. Archives of Neurology, 40, 523-524.
Scepkowski, L.A. & Cronin-Golomb, A. (2003). The alien hand: Cases, categorizations, and anatomical correlates. Behavioral and Cognitive Neuroscience Reviews, 2, 261-277.
Posted on October 13, 2014, in Case Studies, Paraphilia, Psychiatry, Psychological disorders, Psychology, Sex and tagged Alien Hand Syndrome, Diagnostic ideomotor apraxia, Excessive masturbation, Exhibitionism, Involuntary masturbation, Masturbation, Neurological disorders, Possessed hand, Temporal lobe epilepsy. Bookmark the permalink. Leave a comment.