How Does Epileptic Activity Spread?

How does epileptic activity spread?

Commentary Typical epileptic seizures are recorded as large rhythmic electrical activity in the neocortex, hippocampus, and other brain structures. This activity is usually thought to be some form of abnormally synchronized synaptic activity, with or without excessive synchronized local neuronal firing (1). Synaptic models have dominated ideas of the basic mechanisms of epileptic discharges for...

How Does Plague Spread

How does the label “epileptic” influence attitudes toward epilepsy?

PURPOSE The purpose of our research was to study the possible differences in attitudes toward epilepsy based on the label used: "person"/"child with epilepsy" vs. "epileptic"/"epileptic child". METHODS Two randomly assigned groups of college-preparatory high school students were questioned using anonymous questionnaires about their demographics, knowledge on epilepsy and attitudes toward epil...

How Fast Does a General Branching Random Walk Spread?

New results on the speed of spread of the one-dimensionalspatial branching process are described. Generalizations to the multitype case and to d dimensions are discussed. The relationship of the results with deterministic theory is also indicated. Finally the theory developed is used to reprove smoothly (and improve slightly) results on certain data-storage algorithms arising in computer science.

How does spreading depression spread? Physiology and modeling.

Spreading depression (SD) is a wave phenomenon in gray matter tissue. Locally, it is characterized by massive redistribution of ions across cell membranes. As a consequence, there is sustained membrane depolarization and tissue polarization that depress any normal electrical activity. Despite these dramatic events, SD remains difficult to observe in humans noninvasively, which, for long, has sl...