Adult human who are awake with mind wandering and the eyes closed. Most likely EEG pattern is

In adult humans who are awake but at rest with the mind wandering and eyes closed, the most prominent component of EEG is a fairly regular pattern of waves at a frequency of 8-13 Hz and amplitude of 50-100uV when recorded from the scalp this pattern is the alpha rhythm. Ref: Ganong&;s review of medical physiology;23rd edition; pg:233.