“Libenson (2024) observes that we can describe EEG activity by its location, voltage (amplitude), shape (morphology), frequency, rhythmicity, continuity, and the extent of the wave observed in specific clinical states such as wakefulness, drowsiness, and sleep. This post covers EEG morphology, which provides critical insights into the brain’s electrical activity, distinguishing normal patterns from abnormalities.
A wave is a change in the potential difference between two EEG electrodes. Waveform and morphology refer to the signal’s shape generated by oscillating potential differences. Neurofeedback professionals examine the raw waveform’s morphology before considering the filtered and quantified EEG (Demos, 2019). EEG activity means a single wave or series of waves (Fisch, 1999).”
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