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Aliens hand syndrome

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  This syndrome is characterized by the belief that one's hand has an impact in their lives  and doesn’t belong to oneself. Individuals experencing alien hand syndrome have normal sensation but feel their hand is autonomous. Those with alien hand syndrome may personify the limb as a separate entity: The unaffected hand is under the individual’s control while the affected hand has its own agenda. This syndrome may occur in individuals who have damage to the corpus callosum, which connects the two cerebral hemispheres of the brain. Other causes include stroke and damage to the parietal lobe. The hands then appear to be in “intermanual conflict” or “ideomotor apraxia,” meaning they act in opposition to one another.

Capgras syndrome

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  This syndrome is named for Joseph Capgras, a French psychiatrist who explored the illusion of doubles. Those with Capgras syndrome  hold the delusional belief that someone in their life, usually a spouse, close friend, or family member, has been replaced by an impostor. It can occur in patients with schizophrenia, dementia, or epilepsy and after traumatic brain injury. Treatment approaches mirror those utilized for the underlying disorders and often include antipsychotic medications.

Stendhal Syndrome

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Those with Stendhal syndrome experience physical and emotional anxiety as well as panic attacks, dissociative experiences, confusion, and hallucinations when exposed to art. These symptoms are usually triggered by “art that is perceived as particularly beautiful or when the individual is exposed to large quantities of art that are concentrated in a single place,” such as a museum or gallery,  However, individuals may experience similar reactions to beauty in nature. This syndrome is named after 19th century. French Author  who experienced the symptoms during a trip to Florence in 1817. Stendhal syndrome may also be called hyperculturemia or Florence syndrome.

Diogenes Syndrome

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  The compulsive hoarding of rubbish and seemingly random items is the main feature of Diogenes syndrome  which is found mainly in the elderly and is associated with progressive dementia. Other characteristics include extreme self-neglect, apathy, social withdrawal, and a lack of shame. The syndrome is a misnomer, as it is named after the Greek philosopher Diogenes of Sinope. Diogenes was a Cynic who, according to the philosophy he helped found, rejected the desire for wealth, power, and fame, choosing to live free from all possessions. He found virtue in poverty, slept in a large ceramic jar, and sought social interaction.

Deperonalization

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  The separation from oneself, one’s surroundings, or both describes the altered state of depersonalization/derealization disorder. Patients who have this disorder feel they are observing themselves from outside their own body. They may also believe that things aren’t real, as though their surroundings are distorted or time is speeding up or slowing down. One or both of these tendencies can lead to depersonalization/derealization disorder. Symptoms must be persistent to qualify for a diagnosis 

Clinical lycanthropy

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  Clinical lycanthropy involves a delusion that the affected person can transform into an animal. It is often associated with turning into a wolf or werewolf; the name of the syndrome originates from the mythical condition of lycanthropy, or shapeshifting into wolves. People with clinical lycanthropy believe that they can take the form of any particular animal. During this delusion or hallucination, affected 

Kufungisisa

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Another cultural syndrome is Kufungisisa , or “thinking too much.” It is found among the Shona people of Zimbabwe. In many cultures, “thinking too much” is considered to be damaging to the mind and body, causing specific symptoms like headaches and dizziness. Kufungisisa involves ruminating on upsetting thoughts, particularly worries. As a cultural expression, it is considered to be causative to anxiety, depression, and somatic problems (e.g., “my heart is painful because I think too much”). As an idiom, it is indicative of interpersonal and social difficulties. “Thinking too much” is a common idiom of distress and cultural explanation across many countries and ethnic groups, including Africa, the Caribbean, and Latin America, and among East Asian and Native American groups.