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During the First International EEG Congress, London in 1947, it was recommended that Dr. Herbert H. Jasper study methods to standardize the placement of electrodes used in EEG (Jasper 1958). A report with recommendations was to be presented to the Second International Congress in Paris in 1949. The electrode placement systems in use at various centers were(More)
BACKGROUND There have been difficulties in achieving a uniform terminology in the literature regarding issues of classification with respect to focal cortical dysplasias (FCDs) associated with epilepsy. OBJECTIVE S: To review and refine the current terminology and classification issues of potential clinical relevance to epileptologists, neuroradiologists,(More)
An overview of the following six cortical zones that have been defined in the presurgical evaluation of candidates for epilepsy surgery is given: the symptomatogenic zone; the irritative zone; the seizure onset zone; the epileptogenic lesion; the epileptogenic zone; and the eloquent cortex. The stepwise historical evolution of these different zones is(More)
A better understanding of the mechanisms involved in human higher cortical functions requires a detailed knowledge of neuronal connectivity between functional cortical regions. Currently no good method for tracking in vivo neuronal connectivity exists. We investigated the inter-areal connections in vivo in the human language system using a new method, which(More)
Movement-related cortical potentials (MRPs) were recorded from scalp electrodes in 8 normal volunteers and from chronically implanted subdural electrodes in 7 patients who were being evaluated for surgical treatment of epilepsy. From subdural electrodes, a clearly defined, extremely localized slow negative potential preceding the voluntary movement of the(More)
Frontal lobe epilepsy (FLE) surgery is the second most common surgery performed to treat pharmacoresistant epilepsy. Yet, little is known about long-term seizure outcome following frontal lobectomy. The aim of this study is to investigate the trends in longitudinal outcome and identify potential prognostic indicators in a cohort of FLE patients investigated(More)
INTRODUCTION PRINCIPLES FOR TERMS AND DEFINITIONS DATA SOURCES I GENERAL TERMS 1.0 SEMIOLOGY 2.0 EPILEPTIC SEIZURE 3.0 ICTUS 4.0 EPILEPSY 5.0 FOCAL 6.0 GENERALIZED 7.0 CONVULSION II TERMS DESCRIBING EPILEPTIC SEIZURE SEMIOLOGY 1.0 MOTOR 1.1 ELEMENTARY MOTOR 1.1.1 TONIC 1.1.1.1 EPILEPTIC SPASM 1.1.1.2 POSTURAL 1.1.1.2.1 VERSIVE 1.1.1.2.2 DYSTONIC 1.1.2(More)
The effect of subthalamic nucleus (STN) stimulation on cortical electroencephalographic activity was examined in 10 patients with Parkinson's disease and 4 patients with epilepsy. Evoked potentials were created by time-locking electroencephalography to the onset of electrical stimulation delivered through the lead implanted in the STN of patients who had(More)
Movement-related potentials (MRPs) were recorded from subdural electrodes chronically implanted in the interhemispheric fissure in two patients being evaluated for epilepsy surgery. Different types of movements (finger, foot, tongue and vocalization) were executed. Foot movements elicited a clearly defined, well-localized slow negativity or positivity(More)
AIMS To use Diffusion Tensor Imaging (DTI) to explore structural integrity and connectivity of the uncinate fasciculus (UF) in patients with temporal lobe epilepsy (TLE) and its relationship to memory performance. METHODS DTI and UF reconstruction were performed in 28 patients with TLE (18 left, 10 right) and 10 normal controls. Differences between left(More)