[Mne_analysis] ERPs analysis {Disarmed}

Alexandre Gramfort alexandre.gramfort at inria.fr
Tue Nov 24 02:56:20 EST 2020
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hi Chiara,

I am using MNE python to analyse EEG data and we want to do an ERPs
> analysis. After visualizing the data (by plotting the participants' grand
> average of the evokeds for each condition), I need to extract the values of
> the amplitude (area under the curve) of specific potentials in specific
> time windows we selected. I am using the function np.trapz on the selected
> time intervals. However, I am not sure whether this approach is valid or
> whether there are other alternatives to be considered.
>
I would have used scipy.integrate.quad but I doubt it would lead to a big
difference.

it's hard to say more without looking at the data

HTH
Alex

> Moreover, it seems like the pattern we find only by visualising the data,
> doesn't match the statistics we run on the data, thus we were wondering
> whether we are extracting the data in the right way (via the np.trapz
> function).
>
>
> Thank you for your help.
>
>
> Chiara
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