Mind Monitor

Hello, I am doing an experiment on the effect of binaural beat frequencies on the alpha and Beta brain waves power spectral density, and was wondering for a literature value, however couldn't find on internet. Do you possibly know what are the accepted values for alpha and beta waves power spectral ...

Thank you a lot, does that mean the graph in mind monitor displays predominance of the brain waves over time?

I am quite confused on why the mind monitor displays the results in db, could you give me the reason? Also is the power spectral density associated or means the predominance of the brain wave? I am trying to draw conclusions for a research and for example, if my Alpha is in 80.0db and it is the high...