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  2. Seizure - Wikipedia

    en.wikipedia.org/wiki/Seizure

    The person often does not fall over. They may return to normal right after the seizure ends, with no postictal state. [8] [5] The person is usually unaware of what just happened. Atonic seizures involve the loss of muscle activity causing a person to drop abruptly with their muscles limp. [3] [5] This is called a drop attack. [5]

  3. Seizure types - Wikipedia

    en.wikipedia.org/wiki/Seizure_types

    A seizure is a paroxysmal episode of symptoms or altered behavior arising from abnormal excessive or synchronous brain neuronal activity. [5] A focal onset seizure arises from a biological neural network within one cerebral hemisphere, while a generalized onset seizure arises from within the cerebral hemispheres rapidly involving both hemispheres.

  4. Epilepsy - Wikipedia

    en.wikipedia.org/wiki/Epilepsy

    Tonic seizures produce constant contractions of the muscles. A person often turns blue as breathing is stopped. In clonic seizures there is shaking of the limbs in unison. After the shaking has stopped it may take 10–30 minutes for the person to return to normal; this period is called the "postictal state" or "postictal phase

  5. Convulsion - Wikipedia

    en.wikipedia.org/wiki/Convulsion

    A simple febrile seizure is generalized, occurs singularly, and lasts less than 15 minutes. [19] A complex febrile seizure can be focused in an area of the body, occur more than once, and lasts for more than 15 minutes. [19] Febrile seizures affect 2–4% of children in the United States and Western Europe, it is the most common childhood ...

  6. Lennox–Gastaut syndrome - Wikipedia

    en.wikipedia.org/wiki/Lennox–Gastaut_syndrome

    0.026% of all children in the Atlanta, Georgia metropolitan area were estimated to have LGS in 1997, which was defined as, "onset of multiple seizure types before age 11 years, with at least one seizure type resulting in falls, and an EEG demonstrating slow spike-wave complexes (<2.5 Hz)." The study concluded that LGS accounts for 4% of ...

  7. Generalized tonic–clonic seizure - Wikipedia

    en.wikipedia.org/wiki/Generalized_tonic–clonic...

    A generalized tonic–clonic seizure, commonly known as a grand mal seizure or GTCS, [1] is a type of generalized seizure that produces bilateral, convulsive tonic and clonic muscle contractions. Tonic–clonic seizures are the seizure type most commonly associated with epilepsy and seizures in general and the most common seizure associated ...

  8. Ecstatic seizures - Wikipedia

    en.wikipedia.org/wiki/Ecstatic_seizures

    Thereafter, the seizure may or may not evolve into loss of consciousness and a generalized tonic–clonic seizure. [2] [1] In contrast to the auras in ecstatic seizures, most auras of seizures generally are unpleasant, including feelings of anxiety and fear (60%) as well as depression, while positive feelings are only rarely reported. [1]

  9. Generalized epilepsy - Wikipedia

    en.wikipedia.org/wiki/Generalized_epilepsy

    Generalized epilepsy is a form of epilepsy characterised by generalised seizures with no apparent cause. [1] Generalized seizures, as opposed to focal seizures, are a type of seizure that impairs consciousness and distorts the electrical activity of the whole or a larger portion of the brain (which can be seen, for example, on electroencephalography, EEG).