projector delay

[system]

This is probably an old hat, but I couldn't find the confirmation: Does mne-python (e.g. mne.Epochs) allow specifying the delay of stimulus presentation (e.g. caused by projectors), as MNE did with the "delay" option in spec-files?

Olaf

Olaf Hauk, PhD
MRC Cognition and Brain Sciences Unit
Phone: +44(0)1223 273702
Fax: +44(0)1223 359062
Web: http://www.mrc-cbu.cam.ac.uk/people/olaf.hauk/
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[system]

Hi Olaf,

Epochs currently doesn't support specifying a delay. The easiest option
is to modify the events (events are just an N x 3 array where the first
column is the time in samples). If you want to e.g. a shift by 100ms,
you would use

events[:, 0] += np.round(raw.info['sfreq'] * 100e-3)

I hope this helps.

Best,

Martin