Mind Monitor

Hi James,
Awesome site! Thank you so very much for creating and supporting this.
I am trying to determine if different types of meditation make a difference e.g., led, biaural beats (at various frequencies), unled etc.

I would like to take the graphs from each of these sessions and then overlay them. For instance, the alpha graph from a biaural beat session at different frequencies of biaural sounds.

I can do this visually in the graphs but would like to be able to have these overlayed.

Is this possible?

Thanks in advance for the help.

Sure, but you'd need to do that yourself in Excel.

okay thanks

Thank you again, your site and info is amazing. As an educator I have complement you on the clear presentation of how to do the graphing myself. I not only learned how to do it for this effort, but learned a lot about MACROs.

These are great for plotting the averages!

Can you point me in the direction of how to plot these "relative" to each other? Sorry I searched youtube but found nothing that was helpful.

Thanks again

Relative waves are calculated from the Absolute waves using this formula:

relative wave = absolute wave / sum(all absolute waves)

e.g.:

alpha_relative = (10^alpha_absolute / (10^alpha_absolute + 10^beta_absolute + 10^delta_absolute + 10^gamma_absolute + 10^theta_absolute))

Hi, I am new to EEG analysis. Can you help me understand the use of 10^absolutePowerAlpha (instead of just absolutePowerAlpha) for the math?

thanks! Billy.