I'd like to perform different types of event-related power analyses from my
EEG data:
-total power (magnitude of oscillations irrespective of their phase angles)
-evoked power (changes in EEG power that are phase-locked with respect to
the event onset across trials)
-induced power (event-related changes in EEG power that are time-locked,
but not phase-locked with respect to the event onset)
I am relatively new to time-frequency analyses. Is there some sort of
tutorial in mne? For this particular project, I am mainly interested in the
theta frequency band. Which time-frequency decomposition method (STFT,
Hilbert wavelet..) would you recommend? Any example code would be
appreciated!
To get evoked power, just do tfr_morlet(evoked)
To get induced power, just to the subtraction between
tfr_morlet(epochs) and tfr_morlet(evoked)
Time frequency decomposition methods (wavelets, multitaper, etc) are
generally highly converging. I don't think there is a clear consensus
on whether one should be favored for your particular case.
To get evoked power, just do tfr_morlet(evoked)
To get induced power, just to the subtraction between tfr_morlet(epochs) and tfr_morlet(evoked)
Time frequency decomposition methods (wavelets, multitaper, etc) are generally highly converging. I don't think there is a clear consensus on whether one should be favored for your particular case.
Hope that helps,
Jean-R?mi
Hi,
I'd like to perform different types of event-related power analyses from
my EEG data:
-total power (magnitude of oscillations irrespective of their phase
angles)
-evoked power (changes in EEG power that are phase-locked with respect to
the event onset across trials)
-induced power (event-related changes in EEG power that are time-locked,
but not phase-locked with respect to the event onset)
I am relatively new to time-frequency analyses. Is there some sort of
tutorial in mne? For this particular project, I am mainly interested in the
theta frequency band. Which time-frequency decomposition method (STFT,
Hilbert wavelet..) would you recommend? Any example code would be
appreciated!
Best,
Mat
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