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The EEG has been used for many purposes besides the conventional uses of clinical diagnosis and conventional cognitive neuroscience. An early use was during World War II by the U.S. Army Air Corps to screen out pilots in danger of having seizures; [116] long-term EEG recordings in epilepsy patients are still used today for seizure prediction.
This reduction in blood glucose led to double the occurrence of spike-and-wave activity. Similar to the insulin effect, overnight fasting, where blood glucose levels were reduced by 35% also showed this double in occurrence. This model concludes that low glucose levels could be a potential trigger for absence seizures, and could be an ...
A paper published in 2023 showed that burst suppression and epilepsy may share the same ephaptic coupling mechanism. [6] When inhibitory control is sufficiently low, as in the case of certain general anesthetics such as sevoflurane (due to a decrease in the firing of interneurons [7]), electric fields are able to recruit neighboring cells to fire synchronously, in a burst suppression pattern.
Changes that occur during epileptogenesis are poorly understood but are thought to include cell death, axonal sprouting, reorganization of neural networks, alterations in the release of neurotransmitters, and neurogenesis. [5] These changes cause neurons to become hyperexcitable and can lead to spontaneous seizures. [5]
Lateral temporal lobe seizures arising from the temporal-parietal lobe junction may cause complex visual hallucinations. [2] In comparison to mesial temporal lobe seizures, lateral temporal lobe seizures are briefer duration seizures, occur with earlier loss of awareness, and are more likely become a focal to bilateral tonic-clonic seizure. [2]
An epilepsy syndrome is defined as "a characteristic cluster of clinical and Electroencephalography (EEG) features, often supported by specific etiological findings (structural, genetic, metabolic, immune, and infectious)." [1] Syndromes are characterized by seizure types and specific findings on EEGs. Epilepsy syndromes often begin, and may ...
Epilepsy, a brain disorder that causes seizures, is one of the most common conditions that affects the brain. According to the Centers for Disease Control and Prevention (CDC), about 3.4 million ...
Vigilance. The scalp recorded EEG is sensitive to changes in vigilance. Different methods developed to sustain a monitored level of alertness using hand held buzzers that sounded off when the subject relaxed and dozed. Volunteer Baseline and Placebo training. As the EEG is sensitive to anxiety, an initial training session became standard procedure.