How excluding rejected epochs by Autoreject before ICA do not effect EOG?

[aliosia]

I totally agree with your idea on applying global autoreject before ICA or simply applying PTP and excluding large artifacts. However, the autoreject example and both of the threads that I mentioned suggest local autoreject before ICA and I don’t know why, so I get confused.

In the example we have:

We recommend that you first highpass filter the data, then run autoreject (local) and supply the bad epochs detected by it to the ICA algorithm for a robust fit, and finally run autoreject (local) again.

Also take a look at the followings:

@richard

In fact, it appears that using autoreject “local” before and after ICA is in fact a good choice – we were seeing some issues with autoreject “global” before ICA in EEG layouts with some electrodes placed close to the eyes, like Fp1/Fp2.

@mainakjas

Local autoreject before ICA seems to work better than global autoreject. If you’re lazy, you could also just use a high threshold like 500 uV pre-ICA.