Hi,
I am performing padding during epoching but the trial length on the subsequent epoched data does not contain the intended trial length.
I have defined the trial events and condition labels (with spm_eeg_definetrial) which are then fed into spm_eeg_epochs with the padding set to 0.625.
However, the number of samples in each trial (listed by D.nsamples) remains the same with and without the extra padding. I have also viewed the trials with displaying the m/eeg data in the GUI.
The preproc steps performed prior to the epoching include downsampling, filtering, artifact rejection, and lastly ICA denoising.
Thanks,
Alistair
|