Delta Rhythm (Noun)
Meaning
The normal brainwave in the encephalogram of a person in deep dreamless sleep; occurs with high voltage and low frequency (1 to 4 hertz).
Classification
Nouns denoting natural phenomena.
Examples
- Delta rhythms are observed in individuals during the deepest stages of non-REM sleep.
- A person in a coma may display delta rhythms in their brain activity, indicating minimal brain function.
- During the stages of deep sleep, the brain typically produces delta rhythms at frequencies between 1-4 Hz.
- In infants, delta rhythms dominate the brainwave patterns during most of their sleep, which gradually transitions as they mature.
- Abnormal delta rhythms in an awake individual's brain may be an indication of brain damage or neurological disorders.