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Functional Neurological Disorder is a neurological disorder for which very little is currently known. It is an umbrella term for a variety of symptoms which look similar to those caused by neurological conditions such as Multiple Sclerosis (MS) or Parkinson's Disease, including weakness, fatigue and seizures. It is currently believed that Functional Neurological Disorder arises from a problem with the patient's Central Nervous System, which is not sending and receiving signals correctly. The brain of a patient with Functional Neurological Disorder is structurally normal, however functions incorrectly. Currently, traditional tests and investigations such as blood tests, MRI and CT scans will show no abnormalities in patients with FND, however it has been discovered that there is a difference in blood flow to certain key areas of the brain when scanned using Functional Magnetic Resonance Imaging (fMRI). Although currently there is no way to 'see' whether a patient has FND, their symptoms are real, and often cause disability and distress to the individual. Functional Neurological Disorder is similar to the condition Conversion Disorder (CD), which also causes various neurological symptoms. Conversion Disorder however, is "a psychoanalytic concept that describes the occurrence of motor or sensory neurological symptoms other than pain and fatigue that cause distress, are not explained by disease, not malingered but are thought to relate to psychological factors" == Signs and Symptoms == There are a great number of symptoms experienced by those with Functional Neurological Disorder. These include, but are not limited to * Weakness * Paralysis * Dizziness * Nausea * Changes in vision * Non-epileptic seizures * Blackouts * Tremors * Fatigue * Chronic pain * Sensory abnormalities * Bladder or bowel changes 〔 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Functional Neurological Disorder」の詳細全文を読む スポンサード リンク
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