Also known as anarchic hand or Dr. Strangelove syndrome, is a rare neurological disorder characterized by the involuntary, uncontrollable, and often purposeful movements of one hand, which seem to have a mind of their own. People with this syndrome may experience their hand acting in opposition to their intention, as if it has a separate will.


  • This phenomenon arises due to a disruption in the communication between different parts of the brain that control voluntary movements. Typically, the two hemispheres of the brain are in constant communication and work together to produce coordinated movements. However, in individuals with Alien Hand Syndrome, there can be damage to the corpus callosum (the bundle of nerve fibers connecting the two hemispheres) or other areas of the brain that disrupts this communication.
  • The most common scenario involves a person's hand engaging in purposeful actions, seemingly independent of their conscious will. For example, the affected hand might unbutton clothing, grab objects, or perform other actions without the individual's intention. While the actions may appear deliberate, the person experiencing AHS usually feels a lack of control over the movements.
  • Brain surgery: This syndrome can develop after surgical procedures that involve separating the two hemispheres of the brain, such as surgeries to treat epilepsy.
  • Stroke: Damage to certain brain areas due to stroke can lead to this syndrome.
  • Neurodegenerative diseases: Conditions like Creutzfeldt-Jakob disease, Alzheimer's disease, and frontotemporal dementia have been associated with Alien Hand Syndrome.
  • Brain injuries: Traumatic brain injuries or lesions in specific brain regions can trigger the development of AHS.
  • Multiple sclerosis: In some cases, multiple sclerosis can lead to the emergence of this syndrome.


  • Involuntary Movements: The hallmark of AHS is the presence of involuntary movements in one hand that occur without the person's conscious control. These movements may be purposeful and goal-directed, often mimicking normal actions like grabbing objects or touching surfaces.
  • Unintentional Actions: The affected hand may perform actions that are contrary to the person's intentions. For instance, a person might try to button their shirt with one hand while the other hand actively unbuttons it.
  • Interference with Voluntary Actions: People with AHS might find that the alien hand interferes with their attempts to use the affected hand for intentional actions. This interference can cause frustration and difficulty in performing everyday tasks.
  • Sense of Lack of Control: Individuals with AHS typically report a feeling of detachment or lack of control over the movements of the alien hand. They might describe the hand as having a mind of its own.
  • Sensory Awareness: Some individuals may experience sensory sensations in the alien hand, such as tingling, numbness, or a sense of warmth or coldness. These sensations can further contribute to the perception that the hand is acting independently.
  • Disconnection of Ownership: A unique aspect of AHS is the feeling of "disownership" of the alien hand. People may describe the hand as belonging to someone else or as being foreign to them.
  • Neglect of Alien Hand: In severe cases, individuals may neglect the presence of the alien hand, as if it does not belong to them. They might ignore the hand's movements or even attempt to restrain it.
  • Interhemispheric Disconnection: AHS is often associated with disruptions in the communication between the brain's two hemispheres. This can result from conditions such as callosal disconnection, where the corpus callosum (which connects the two hemispheres) is damaged or severed.
  • Emotional Reactions: Some people with AHS might experience emotional reactions to the actions of their alien hand, ranging from amusement to distress.
  • Variability: The symptoms of AHS can be inconsistent and vary over time. The hand's behavior may change in response to different situations, emotions, or levels of focus.


  • Clinical Evaluation: The medical professional will conduct a thorough medical history interview with the individual and their caregivers to gather information about the onset, duration, and nature of the symptoms. Details about any past medical conditions, surgeries, injuries, or neurological disorders will be important.
  • Neurological Examination: A detailed neurological examination will be performed to assess motor functions, sensation, coordination, and reflexes. This examination helps rule out other potential causes of the involuntary movements and assesses any other neurological deficits.
  • Imaging Studies: Brain imaging techniques such as magnetic resonance imaging (MRI) or computed tomography (CT) scans may be used to visualize the brain's structure and detect any abnormalities, lesions, or damage that could contribute to AHS. These scans help pinpoint the affected brain areas.
  • Functional Tests: Functional imaging techniques, such as functional MRI (fMRI) or positron emission tomography (PET) scans, can provide insights into the brain's activity during various tasks and help identify areas of abnormal brain function.
  • Electroencephalography (EEG): An EEG records the brain's electrical activity and can help identify abnormal patterns associated with certain neurological conditions.
  • Neuropsychological Assessment: Assessments of cognitive and psychological functions are often conducted to rule out other conditions and understand any potential cognitive impairments associated with AHS.
  • Differentiating from Other Disorders: It's important to differentiate AHS from other conditions that might involve involuntary movements or changes in behavior, such as focal seizures, apraxia (inability to perform purposeful movements), and certain psychiatric disorders.
  • Observation: Sometimes, observation of the individual's behaviors in different situations can provide insights into the characteristics of the alien hand movements and their relationship to the person's conscious intentions.
  • Collaborative Diagnosis: Due to the complexity of AHS, a multidisciplinary approach involving neurologists, neuropsychiatrists, neurosurgeons, and other specialists may be necessary to arrive at an accurate diagnosis.


  1. Aconitum napellus: This remedy is often used for sudden onset of anxiety, restlessness, and fear in children. It might be considered for situations like panic attacks or acute anxiety.
  2. Calcarea carbonica: This remedy is sometimes used for children who are anxious, shy, and easily overwhelmed. It might be considered when anxiety is accompanied by physical symptoms like cold hands and feet.
  3. Gelsemium: This remedy is often used for anticipatory anxiety and nervousness, especially before events like exams or performances. Children who need this remedy may experience trembling, weakness, and a lack of confidence.
  4. Ignatia: This remedy is sometimes used for children who are emotionally sensitive and prone to mood swings. It might be considered for grief, sadness, and emotional upsets.
  5. Lycopodium: This remedy is often used for children who are intellectually advanced but lack confidence, leading to anxiety. It might be considered for stage fright, social anxiety, and fear of failure.
  6. Stramonium: This remedy might be considered for children who experience nightmares, night terrors, or extreme fears, particularly fears of the dark or being alone.
  7. Chamomilla: This remedy is sometimes used for irritable and agitated children who are easily angered and have difficulty calming down. It might be considered for tantrums and sleep disturbances.
  8. Cina: This remedy is sometimes used for children who are irritable, hyperactive, and prone to mood swings. It might be considered for nervous system symptoms associated with intestinal worms.