Tag: Hans Berger

December 6, 2025 / Mohammed looti

BRAIN WAVES (Electroencephalogram, EEG)

Introduction and Definition of the EEG The Electroencephalogram (EEG) represents a cornerstone methodology in clinical neurology and cognitive neuroscience, serving as an essential, non-invasive technique for measuring and recording the electrical activity generated by the brain. Fundamentally, the EEG captures the aggregated electrical potentials arising primarily from the synchronous activity of large populations of cortical […]

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December 2, 2025 / Mohammed looti

K COMPLEX

Introduction and Definition of the K Complex The K Complex represents a fundamental and defining electroencephalographic (EEG) event occurring during Non-Rapid Eye Movement (NREM) sleep, specifically marking the transition into or presence within Stage 2 sleep. Physiologically, it is characterized by a distinctive, transient waveform pattern: a sharp, rapid spike of exceptionally high amplitude immediately […]

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