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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.
Absence seizures are generalized epileptic seizures that can be divided into two types, typical and atypical. Typical and atypical absence seizures display two different kinds of spike-and-wave patterns. Typical absence seizures are described by generalized spike-and-wave patterns on an EEG with a discharge of 2.5 Hz or greater.
EEG-fMRI (short for EEG-correlated fMRI or electroencephalography-correlated functional magnetic resonance imaging) is a multimodal neuroimaging technique whereby EEG and fMRI data are recorded synchronously for the study of electrical brain activity in correlation with haemodynamic changes in brain during the electrical activity, be it normal function or associated with disorders.
Long-term or "continuous" video-electroencephalography (EEG) monitoring is a diagnostic technique commonly used in patients with epilepsy. It involves the long-term hospitalization of the patient, typically for days or weeks, during which brain waves are recorded via EEG and physical actions are continuously monitored by video.
Epilepsy surgery is the cure for partial epilepsy provided that the brain region generating seizure is carefully and accurately removed. Extraoperative ECoG Before a patient can be identified as a candidate for resectioning surgery, MRI must be performed to demonstrate the presence of a structural lesion within the cortex, supported by EEG ...
Excessive release of glutamate results in excitotoxicity, in which neurons are excessively depolarized, intracellular Ca 2+ concentrations increase sharply, and cellular damage or death results. [6] Excessive glutamatergic activity is also a feature of neuronal circuits after epilepsy has developed, but glutamate does not appear to play an ...
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.