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Seizures and Epilepsy

  • Andrea E. Cavanna
Chapter

Abstract

Epileptic seizures are defined as the clinical manifestations of abnormal excessive or synchronous neuronal activity in the brain: transient alterations in consciousness and/or motor control. Epilepsy is a disease characterised by an enduring predisposition to generate recurrent epileptic seizures and by the neurobiological, cognitive, psychological, and social consequences of this condition. Although approximately 1 in 20 people may have a seizure during their lifetime, the prevalence of epilepsy is considerably lower, being around 0.5–1% for the general population. The cornerstone of the seizure classification system is the determination of whether the initial manifestations of the seizure are focal or generalised. Additionally, focal seizures are sub-grouped as those with motor and non-motor manifestations at the onset. Finally, the behavioural assessment of consciousness (operationally defined as the patient’s awareness of self and environment during a seizure) may be included in the classification of focal seizure types. Behavioural symptoms are commonly reported by patients with epilepsy, and the neuropsychiatric aspects of epilepsy can be classified according to their temporal relationship to epileptic seizures as ‘interictal’ and ‘ictal’ psychiatric disorders.

Keywords

Awareness Classification Consciousness Epilepsy Seizure 

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Copyright information

© Springer International Publishing AG, part of Springer Nature 2018

Authors and Affiliations

  • Andrea E. Cavanna
    • 1
  1. 1.Dept of NeuropsychiatryUniversity of BirminghamBirminghamUnited Kingdom

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