I have a few questions regarding the process during which Brainstorm directly generates a Canolty map from the imported raw signal.
1.In the upper part of a Canolty map the Time-frequency plot of mean power modulation can be seen.
I do not understand how the program calculates it:
It is calculated and plotted with the same steps as the tPAC is calcualted (which is clearly described in Samiee et al. 2017)?
Or the program plots the power spectral density in this time-frequency decomposition ? There is also a color bar without unit. If a name for this unit should be given, what would it be?
Moreover, how the phases of the averaged nesting frequency are found and matched to the Time-frequency decompostion? Does the program use Hilbert transform?
2. The local field potential was recorded with 5 KHz sampling rate and the plotted Canolty map goes until 250 Hz. If I want to see what is above 250 Hz, should I increase the sampling rate? (I did not find options in the pipeline where I could set it but maybe there is one.)
In the upper part of a Canolty map the Time-frequency plot of mean power modulation can be seen.
I do not understand how the program calculates it:
It is calculated and plotted with the same steps as the tPAC is calcualted (which is clearly described in Samiee et al. 2017)?
The local field potential was recorded with 5 KHz sampling rate and the plotted Canolty map goes until 250 Hz. If I want to see what is above 250 Hz, should I increase the sampling rate?
Not sure why we have this limit, I think Esther transferred the original code to brainstorm. Probably it was hard coded in that version and did not get updated! @Francois