EEG recording of generalized 3 Hz<unk>  discharges seen in a child during an absence seizure<unk>  is a pattern of the electroencephalogram (EEG) typically observed during epileptic seizures. A<unk>  discharge is a regular, symmetrical, generalized EEG pattern seen particularly during absence epilepsy, also known as ‘petit mal’ epilepsy. The basic mechanisms underlying these patterns are complex and involve part of the cerebral cortex, the thalamocortical network, and intrinsic neuronal mechanisms. The first<unk>  pattern was recorded in the early twentieth century by Hans Berger. Many aspects of the pattern are still being researched and discovered, and still many aspects are uncertain. The<unk>  pattern is most commonly researched in absence epilepsy, but is common in several epilepsies such as Lennox-Gastaut syndrome (LGS) and Ohtahara syndrome. Antiepileptic drugs (AEDs) are commonly prescribed to treat epileptic seizures, and new ones are being discovered with fewer adverse effects. Today, most of the research is focused on the origin of the generalized bilateral<unk>  discharge. One proposal suggests that a thalamocortical (TC) loop is involved in the initiation<unk>  oscillations. Although there are several theories, the use of animal models has provided new insight on<unk>  discharge in humans.
Spike-and-wave
Cyclic alternating pattern
Delta wave
Oak wilt
Infradian rhythm
Alpha wave
Apex beat
Mu wave