I currently try to send trigger following the start of pictures with eprime on a powerlab (electrodermal response recording).
Despite all I have seen on google eprime group, this currently not function.
I have written the following inlines :
at the beginning of the experiment : inline 1 : WritePort &H378, 1
in trialproc : inline 2
photos.OnsetSignalEnabled = True
photos.OnsetSignalPort = &H378
photos.OnsetSignalData = C.getAttrib("trigger") : this refers to the nam of the stimuli.
photos.OffsetSignalEnabled = True
photos.OffsetSignalPort = &H378
photos.OffsetSignalData = 0
Is there something wrong?
thanks so much for any help.
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