학술논문

An unaware agenda: interictal consciousness impairments in epileptic patients
Document Type
Academic Journal
Source
Neuroscience of Consciousness. Annual, 2017, Vol. 2017 Issue 1, p1B, 10 p.
Subject
Neurophysiology
Epilepsy
Seizures (Medicine)
Novels
Language
English
Abstract
Consciousness impairments have been described as a cornerstone of epilepsy. Generalized seizures are usually characterized by a complete loss of consciousness, whereas focal seizures have more variable degrees of responsiveness. In addition to these impairments that occur during ictal episodes, alterations of consciousness have also been repeatedly observed between seizures (i.e. during interictal periods). In this opinion article, we review evidence supporting the novel hypothesis that epilepsy produces consciousness impairments which remain present interictally. Then, we discuss therapies aimed to reduce seizure frequency, which may modulate consciousness between epileptic seizures. We conclude with a consideration of relevant pathophysiological mechanisms. In particular, the thalamocortical network seems to be involved in both seizure generation and interictal consciousness impairments, which could inaugurate a promising translational agenda for epilepsy studies. Key words: epilepsy; interictal period; consciousness impairments; therapy; thalamocortical network; interictal epileptic discharges
Introduction Before the birth of modern neuroimaging, the classification of epilepsies was based on behavioral observations. The first publications of the Commission on Classification and Terminology of the International League [...]