How is the absolute band power calculated? Can you people also put some light on what absolute power mean here. Are there any smoothing functions used for it.
I know that the raw EEG values are used to calculate the FFT across 129 bins. But it seems that the values are converted or transformed before executing the FFT.
I tried doing a FFT using 256 raw EEG values just before a raw_fft0 value is encountered in the data. But, the FFT values don’t match with raw_fft values! Is there a reason or step that I am missing. Also, I would like to know about PSD, what does it mean, how to interpret it, and what does it tell us about the person’s brain?
Can the absolute band power be plotted against time? Do I need to take an antilog of the values, as the muse OSC descriptions says that it is log of power!
Help is very much appreciated.