1. delta wave
2. Delta waveA delta wave is a high amplitude brain wave with a frequency of oscillation between 0–4 hertz. Delta waves, like other brain waves, are recorded with an electroencephalogram (EEG) and are usually associated with the deepest stages of sleep (3 and 4 NREM), also known as slow-wave sleep (SWS), and aid in characterizing the depth of sleep.
Read “Delta wave” on English Wikipedia
Read “デルタ波” on Japanese Wikipedia
Read “Delta wave” on DBpedia
Read “Delta wave” on English Wikipedia
Read “デルタ波” on Japanese Wikipedia
Read “Delta wave” on DBpedia
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