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Erschienen in:
2023 | OriginalPaper | Buchkapitel
8. Population models
verfasst von : Stephen Coombes, Kyle C. A. Wedgwood
Erschienen in: Neurodynamics
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Abstract
Ever since the first recordings of the human electroencephalogram (EEG) in 1924 by Hans Berger [72], electrophysiological brain recordings have been shown to be dominated by oscillations (rhythmic activity in cell assemblies) across a wide range of temporal scales. From a behavioural perspective, these oscillations can be grouped into five main frequency bands: delta (\(1-4\) Hz), theta (\(4-8\) Hz), alpha (\(8-13\) Hz), beta (\(13-30\) Hz), and gamma (\(30-200\) Hz). Alpha rhythms are associated with awake resting states and REM sleep, delta with deep sleep, theta with drowsiness, whilst beta and gamma rhythms are associated with task-specific responses [32, 59, 133, 796].