To identify the retinal origin of a cortical evoked potential elicited by transcorneal electrical stimulation of the visual system (EER), the response properties of retinal ganglion cells (RGCs) of cats to transcorneal electrical stimuli were studied. The discharge latency of RGCs to transcorneal stimulation had two peaks with a high temporal resolution. The latency of early components of the E...

While many studies suggest that patients with Alzheimer’s disease have a higher chance for developing epileptic seizures, only few are available examining independent discharges. The major aims of our study was to determine the prevalence subclinical epileptiform activity (SEA) in AD compared healthy elderly controls hypothesis SEA is more frequent than cognitively normal individuals. Another a...

PURPOSE To describe clinical and electrographic characteristics of seizures LGI1-antibody encephalitis, and their correlations with two-year outcomes. METHODS Video-electroencephalography recordings were performed on a cohort of 16 consecutive patients with LGI1-antibodies from two UK neuroscience-centers over five-years. RESULTS From 14 of 16 patients (13 males; age-range 53-92years), 86 f...

AFFILIATIONS: LYONS AND NELSON—FMA Research, Inc., Fort Collins, Colorado; ARMSTRONG—Mission Research Corporation, Nashua, New Hampshire; PASKO—The Pennsylvania State University, University Park, Pennsylvania; STANLEY—Los Alamos National Laboratory, Los Alamos, New Mexico CORRESPONDING AUTHOR: Walter A. Lyons, CCM, FMA Research, Inc., Yucca Ridge Field Station, 46050 Weld County Road 13, Fort C...

Two electrical techniques that are frequently used to characterize radio frequency plasmas are described: current–voltage probes for plasma power input and compensated Langmuir probes for electron energy probability functions and other parameters. The following examples of the use of these techniques, sometimes in conjunction with other diagnostic methods, are presented: plasma source standardi...

In this prospective, open, clinical comparative study we analyzed impairments of cognitive activation occurring during, immediately before and immediately after epochs with epileptiform EEG discharges of 3 seconds or longer, in an attempt to establish whether cognitive slowing occurs in direct association with an epoch with epileptiform EEG discharges and whether cognitive impairments precede o...

OBJECTIVES To report bilateral high-frequency synchronous discharges in a patient with a sporadic form of olivopontocerebellar atrophy; to investigate the electromyographic pattern, the coherence and cospectral density across limbs, and the resetting effects of electrical stimulation over the posterior fossa; and to highlight the clinical, electrophysiologic, and radiologic features of this new...

This manuscript reviews epilepsy, seizures and/or subclinical electrical discharges (SEDs) in individuals with autism spectrum disorder (ASD), including prevalence of epilepsy and SEDs, clinical characteristics of this ASD subgroup and seizure types. The prevalence of epilepsy in ASD is higher than the prevalence of epilepsy in typically developing individuals and depends on age and gender as w...

The purpose of this paper is to introduce electrical discharge phenomena known as transient luminous events above thunderstorms to the lightning protection community. Transient luminous events include the upward electrical discharges from thunderstorms known as starters, jets, and gigantic jets, and electrical discharges initiated in the lower ionosphere such as sprites, halos, and elves. We gi...

Partial discharges are a transient phenomena whose measurement is remarkably important for electrical equipment diagnosis and maintenance. These discharges appear in the measurement circuit as very narrow current pulses of some nanoseconds. Therefore, discharge pulse detection is a particularly difficult problem, especially because they are superposed on the high voltage waveforms that cause th...