Two different interictal spike patterns anticipate ictal activity in vitro
نویسندگان
چکیده
منابع مشابه
Peri-ictal and interictal, intracranial infraslow activity.
It is widely assumed that the recording of EEG infraslow activity (ISA) requires direct current amplifiers. Yet, it has been shown during the past decade that conventional EEG systems can record activity between 0.01 and 0.1 Hz and that this frequency band contains additional information, especially in regard to seizure onset. To delineate the characteristics of background ISA, 24-hour scalp an...
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The transition from brief bursts of synchronous population activity characteristic of interictal epileptiform discharges (IEDs) to more prolonged epochs of population activity characteristic of seizures (ictal-like activity) was recorded in juvenile rat hippocampal-entorhinal cortex slices and hippocampal slices using multiple-site extracellular electrodes. Epileptiform activity was elicited by...
متن کاملinterictal-like activity in vitro
1 INSERM U739, Faculté de Médecine Pitié-Salpêtrière, Paris, France 2 Institute for Psychology, Hungarian Academy of Sciences, Budapest, Hungary 3 National Institute of Neurosurgery, Budapest, Hungary 4 Institute of Experimental Medicine, Hungarian Academy of Sciences, Budapest, Hungary 5 Epilepsy Unit, Hôpital Pitié-Salpêtrière, Paris, France 6 Neurosurgery Unit, Hôpital Pitié-Salpêtrière, Par...
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We propose a neuronal network model which undergoes a saddle node on an invariant circle bifurcation as the mechanism of the transition from the interictal to the ictal (seizure) state. In the vicinity of this transition, the model captures important dynamical features of both interictal and ictal states. We study the nature of interictal spikes and early warnings of the transition predicted by...
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An electroencephalogram (EEG) is a graphical record of ongoing electrical activity produced by firing of neurons of the human brain due to internal and/or external stimuli. Feature extraction and classification of the EEG signals are used for diagnosis the epileptic seizure (i.e., physical changes in behaviour that occur due to abnormal electrical activity in the brain). Classification of Ictal...
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ژورنال
عنوان ژورنال: Neurobiology of Disease
سال: 2013
ISSN: 0969-9961
DOI: 10.1016/j.nbd.2012.12.004