This investigation was carried out on two patients suffering from so-called primary subcortical epilepsy. Serial studies were made both of variations in the amount of paroxysmal electrical activity recorded from the brain during the performance of psychological tests and of changes in test performance in the presence of paroxysmal discharges. There is no doubt that changes in the alpha rhythm c...

The microbicidal effect of electrical discharges on microorganisms suspended in the discharge liquid was reduced when the liquid contained high concentrations of inorganic salts (conductivity k >/= 5 mmho/cm). A higher discharge voltage and a smaller distance between the submerged electrodes counteracted this reduction. The decrease in the microbicidal effect was accompanied by a change in the ...

By using a combination of radio frequency time-of-arrival and interferometer measurements, we observed a sequence of lightning and electrical activity during one of Mount St. Augustine's eruptions. The observations indicate that the electrical activity had two modes or phases. First, there was an explosive phase in which the ejecta from the explosion appeared to be highly charged upon exiting t...

Many studies employing various methods have been carried out into the number densities of excited atoms in electrical discharges with inert gases [1,2,3], but the ranges of the discharge current and gas pressure is very limited in them all. In this work, the population densities of 3S, 3s' of neon have been investigated using the atomic absorption method. Since the discharge current and gas...

The cortical control of the autonomic system may account for the clinical phenomenon of ictal asystole which, in turn, has been speculated to be a potential mechanism for sudden unexpected death in epilepsy (SUDEP). We report an 18-year-old patient with frontal lobe epilepsy who had intracranial electrode placement showing bifrontal seizure-onset. This patient received electrical stimulation to...

Measurements of the electrical characteristics of discharges in the Gaseous Electronics Conference Radio-Frequency Reference Cell are reviewed here. Topics include: common sources of error in the measurements; comparisons of current and voltage data among GEC cells; the effects of gas impurities, surface conditions and the external circuitry on the reproducibility of the electrical characterist...

Partial or total neuronal isolation of the cerebral cortex leads to changes in electrical afterdischarges, locally elicited by drug and electrical stimulation (Sharpless and Halpern 1962; Echlin and Battista 1963). Thresholds decrease and duration of after-discharges increases over weeks and months following partial or complete isolation of cerebral cortex. This phenomenon has been called super...

Running title: Sharp wave activity in Cx36 knock out mice. ABSTRACT Bath application of kainate (100-300 nM) induced a persistent gamma frequency (30-80 Hz) oscillation that could be recorded in stratum (s) radiatum of the CA3 region in vitro. We have previously described that in knockout mice lacking the gap junction protein connexin 36, (Cx36KO), gamma frequency oscillations are reduced but s...