Nocturnal epilepsy brain affected1/22/2024 ![]() ![]() In some cases, there may be warning signs before a seizure, such as changes in vision or taste however for others it may occur with no prior indication.ĭuring a seizure, the brain transmits sudden, short bursts of electrical activity which can cause muscle spasms, loss of motor control, and a variety of other symptoms. Epilepsy has several causes including head trauma, brain disorders, and infection, although 50% of the time the cause is unknown. This condition affects men and women of all ages and races. During generalized seizures, there is activity in both hemispheres of the brain, whereas, during a partial seizure, the activity is restricted to a localized area of the brain. Seizures are divided into two main groups generalized and partial (also called focal). There are several types of seizures, which are categorized based on the type of brain activity involves and the changes in behavior they cause. 2009 doi:10.1212/ to understanding types of epilepsy it is important to understand the types of seizures it may cause. Report of the Quality Standards Subcommittee and Therapeutics and Technology Assessment Subcommittee of the American Academy of Neurology and American Epilepsy Society. Practice parameter update: Management issues for women with epilepsy - Focus on pregnancy (an evidence-based review): Teratogenesis and perinatal outcomes. Centers for Disease Control and Prevention. Focal epilepsy: Causes and clinical features. In: Harrison's Principles of Internal Medicine. National Institute of Neurological Disorders and Stroke. The loss of brain cells in the hippocampus may cause memory problems. This area of the brain is called the hippocampus. Over time, repeated temporal lobe seizures can cause the part of the brain that's responsible for learning and memory to shrink. A temporal lobe seizure is a focal seizure that originates in one of the temporal lobes. If this happens in just one area of the brain, the result is a focal seizure. If there's a burst of electrical activity in many brain cells, a seizure may occur. Blood vessel malformations in the brain.ĭuring waking and sleeping, your brain cells produce varying electrical activity.A process that causes scarring in a part of the temporal lobe called the hippocampus.Infections such as encephalitis or meningitis.But they can be a result of a number of factors, including: Often, the cause of temporal lobe seizures is not known. The temporal lobe processes memories, integrating them with sensations of taste, sound, sight and touch. The parietal lobe processes information about temperature, taste, touch and movement, while the occipital lobe is primarily responsible for vision. The frontal lobe is important for cognitive functions and control of voluntary movement or activity. Or the seizures become more intense.Įach side of your brain contains four lobes. The number of seizures increases without explanation.You think you or your child has had a seizure.If you experience a seizure for the first time, see a health care provider. You've injured yourself during the seizure.Recovery is slower than usual after the seizure is over.Recovery isn't complete after the seizure is over.Breathing or consciousness doesn't return after the seizure stops.The seizure lasts more than five minutes. ![]() When to see a doctorĬall 911 or your local emergency number if any of the following occurs: This type of seizure causes shaking, known as convulsions, and loss of consciousness. In extreme cases, what starts as a temporal lobe seizure evolves into a generalized tonic-clonic seizure.
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