Back Deltawelle German Ondas delta Spanish امواج دلتا Persian Rythme delta French Delta-hullám Hungarian Դելտա-ռիթմ Armenian デルタ波 Japanese 델타파 Korean Deltagolven Dutch Fale delta Polish

Delta wave

For the medical syndrome, see Wolff–Parkinson–White syndrome. For the television show, see Delta Wave.

A delta wave, recorded in a one-second sample of an EEG (electroencephalograph). This particular wave has a frequency of around 1 Hz.

Delta waves are high amplitude neural oscillations with a frequency between 0.5 and 4 hertz. Delta waves, like other brain waves, can be recorded with electroencephalography[1] (EEG) and are usually associated with the deep stage 3 of NREM sleep, also known as slow-wave sleep (SWS), and aid in characterizing the depth of sleep. Suppression of delta waves leads to inability of body rejuvenation, brain revitalization and poor sleep.[2]

This is a screenshot of a patient during Slow Wave Sleep (stage 3). The high amplitude EEG is highlighted in red. This screenshot represents a 30-second epoch (30 seconds of data).
  1. ^ Walker, Peter (1999). Chambers dictionary of science and technology. Edinburgh: Chambers. p. 312. ISBN 0-550-14110-3.
  2. ^ Abhang, Priyanka A; Gawali, Bharti W.; Mehrotra, Suresh C. (2016). Introduction to EEG- and Speech-Based Emotion Recognition. Academic Press. pp. 51–79. ISBN 9780128044902.
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