[Eeglablist] epoch length inquiry for short trials

[Kavanaugh, Brian]

Hi everyone,

Our kids go/nogo task has shorter trials (500 ms stimuli, 900 ms response
window [or until response], 200 ms inter-trial interval) than the -1 to 2
second epoch time length. Particularly as we are interested in midline
theta activity.

I'm sure this has been explained before, but I struggled to find it in the
archives. I apologize in advance.

If I use the -1 to 2 sec epoch in eeglab, won't these epochs overlap
trials? Making inter-trial intervals longer would seem to solve this issue,
but now that data has been collected... Any advice on optimal epoching?

Thank you!!!

Brian


Brian Kavanaugh, Psy.D., ABPP

Board Certified in Clinical Neuropsychology, Pediatric Subspecialist

Pediatric Neuropsychologist, E. P. Bradley Hospital

Assistant Professor (Research), Warren Alpert Medical School of Brown
University