[Eeglablist] Identifying stimulation events

[Madeline Grade]

Hello all,

I am trying to average the 200ms following repeated bipolar stimulation in
intracranial recordings of epileptic patients, in the hope of identifying
propagation patterns. Ideally there would be a way to automatically create
an EEGLAB event for each stimulation, by identifying when signal amplitude
exceeds a particular threshold (stim is very obvious- huge amplitude
change), and then extracting epochs following the stimulations.

Can this "stimulation event detection" be done in EEGLAB? Or must it be
imported-- should I somehow create a separate 'events' matrix in Matlab by
manipulating the imported EEG matrix and identifying at which indices this
occurs?

Any info/suggestions would be much appreciated.

Madeline
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