Time frequency plot on cortex

Hi all,
I performed source estimation and would like to plot the power of a specific frequency band (for example - alpha) on the cortex by time. What is the best way to do this?
Thank you!

Hi, check the Time-frequency tutorial:
https://neuroimage.usc.edu/brainstorm/Tutorials/TimeFrequency#Full_cortical_maps

great, thank you!