They can equally be seen in cases of focal or generalized subcortical brain damage and epilepsy. These rhythms are associated with spatial navigation and some forms of memory and learning, especially in the temporal lobes. Theta activity can be observed in adults during some sleep states, and in states of quiet focus, for example meditation (e.g. Theta rhythms are observed in awake children under the age of 13 years. When seen in this fashion, they are between 4 and 8 Hz, and involve many neurons firing synchronously, probably in the hippocampus and through the cortex. Theta rhythms are one of several characteristic electroencephalogram waveforms associated with various sleep and wakefulness states. This banner appears on articles that are weak and whose contents should be approached with academic caution Please help recruit one, or improve this page yourself if you are qualified. This article is in need of attention from a psychologist/academic expert on the subject.
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