delta wave

the lowest frequency brain wave recorded in electroencephalography. Delta waves are large, regular-shaped waves that have a frequency of 1 to 3 Hz. They are associated with deep sleep (delta-wave sleep) and indicate a synchronization of cells of the cerebral cortex. Also called delta rhythm; slow wave. See NREM sleep; Stage 3 sleep; Stage 4 sleep.

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Psychology term of the day

December 3rd 2024

systemic mucopolysaccharidosis

see Maroteaux–Lamy syndrome.