Absence (petit mal) seizures typically last only a few seconds, but can occur hundreds of times a day.
Amnesia is much more common in fictional characters than in real people. Causes include stroke, brain inflammation and alcoholism.
Cerebral palsy — Comprehensive overview covers symptoms, causes and treatment of this movement disorder.
Childhood schizophrenia is confusing and heart wrenching. Learn about managing this serious psychotic disorder.
Chronic daily headaches strike nearly every day. Aggressive initial treatment and steady, long-term management can help reduce pain and lead to fewer headaches.
Coma is often a complication from a severe brain injury that leaves a person unconscious and unresponsive. Many people recover from this condition.
Conversion disorder occurs when your response to stress shows up as seizures, paralysis or another physical symptom.
Creutzfeldt-Jakob disease is a rare cause of dementia that progresses rapidly once symptoms develop.
Dementia — Comprehensive overview covers symptoms, causes and treatments of this mental deterioration.
Dysarthria is a speech disorder caused by an inability to control or coordinate the muscles used for speaking.
Encephalitis is inflammation of the brain usually caused by a viral infection. Severe cases can cause brain damage, even death.
Epilepsy disrupts the normal electrical activity inside your brain. Symptoms and causes can vary, but medication is usually very effective.
Although febrile seizures can be frightening for parents and children, they're generally harmless. Most occur after a sudden fever spike, usually due to an infection.
Frontal lobe seizures can produce many odd behaviors, including bicycle pedaling motions and pelvic thrusting. Seizures often occur during sleep.
A grand mal seizure is characterized by loss of consciousness and convulsions.
Huntington's disease — an inherited disease that causes the degeneration of brain cells — results in movement, psychiatric, cognitive disorders and eventual death.
Intermittent explosive disorder involves aggressive, violent behavior that's out of proportion to what triggered the behavior. Episodes may be separated by long periods of time.
This type of dementia often causes hallucinations, delusions and fluctuating alertness.
Long QT syndrome is an electrical disturbance that can cause sudden, rapid heart rates. It can be genetic or a side effect of medication.
Myoclonus refers to involuntary muscle jerks. Examples range from simple hiccups to the jerking movements common in epileptic seizures or cognitive disorders.
Do you feel a creepy, crawly sensation in your legs after sitting for long periods or lying down at night? You could have restless legs syndrome.
Parenting a child with Rett syndrome can be challenging. Here's what to expect and steps you can take to help your child.
Temporal lobe seizures can cause various symptoms and a momentary loss of awareness. Medication controls most cases, but for some, surgery may be an option.
Imagine having no moment-to-moment memory — no recall of what you just did. That's the essence of transient global amnesia. Fortunately, it's rare and temporary.
Tuberous sclerosis is a rare genetic disease. With appropriate treatment, many people who have tuberous sclerosis lead full, productive lives.
West Nile virus infection usually resolves on its own, but occasionally it can be serious.
May. 19, 2011
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- Hirsch LJ, et al. Electroencephalography (EEG) in the diagnosis of seizures and epilepsy. http://www.uptodate.com/home/index.html. Accessed March 23, 2011.
- Aminoff MJ. Electrodiagnostic studies of nervous system disorders: EEG, evoked potentials and EMG. In: Fauci AS, et al. Harrison's Online. 17th ed. New York, N.Y.: The McGraw-Hill Companies; 2008. http://www.accessmedicine.com/content.aspx?aID=2885536. Accessed March 23, 2011.
- Importance of EEG tests. Epilepsy Foundation. http://www.epilepsyfoundation.org/about/quickstart/newlydiagnosed/qstreatment/qstreeg.cfm. Accessed March 23, 2011.
- Neurological diagnostic tests and procedures. National Institute of Neurological Disorders and Stroke. http://www.ninds.nih.gov/disorders/misc/diagnostic_tests.htm. Accessed March 23, 2011.
- Devinsky O. Epilepsy: Patient and Family Guide. 3rd ed. New York, N.Y.: Demos Medical Publishing LLC; 2008:76.
- Sedation analgesia. American Society of Anesthesiologists. http://www.lifelinetomodernmedicine.com/Types-Of-Anesthesia/Sedation-Analgesia.aspx. Accessed March 23, 2011.