with regard to electroencephalography, a kind of low-magnitude neurological wave (with a range of 8-12 Hz) frequently documented from the head right atop the occipital cortex. Alpha waves customarily take place whenever the eyeballs are distracted and virtually no existing cognitive processes are going on. They're oftentimes considered an indication of alert however comfortable condition. The existence of alpha waves might be escalated via psychophysiological feedback practicing among other relaxation processes. Commonly referred to as alpha rhythm or Berger rhythm.
ALPHA WAVE: "Doctors can measure the magnitude and frequency of alpha waves easily with modern technology."