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Forum Newbie
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Last Login: 10/18/2011 1:43:16 PM
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Hello everyone!
I have this question for anyone who wants to help a debutant in all this word of eeg-experiment programming in e-prime.
First of all, I must say I am a PhD student in Spain and I am beginning my research history! The question is as follows: I want to present subjects with lists of words with 10 words in, each in order to be studied. The total number of list will be 24. Afterwards, I would like to present a recognition test whit some studied word list and distractors that can be critical or non-critical. At the same time, I will to record erp's and I would like to mark or send triggers of every list type and distractors using a 136-channel physiological measurement system = QuickAmp-136 both in the study phase and the test phase. My question is: Is there any way to use more than 16 triggers to mark the entire list and all the distractors? I would appreciate your help very much!
Thanks in advance!
Alejandro M.
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Forum Newbie
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Last Login: 4/19/2012 6:31:27 AM
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I'm not sure with your question, but as I know you can use 256 kinds of trigger using parallelport.
2bits^8=256. using the function of "WritePort"
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Forum MVP
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Last Login: 5/17/2012 5:46:13 PM
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Just to nitpick a bit, because your external equipment will detect a value only when it changes, you must use one of those 256 values as a "baseline" value. Thus, you can really have only 2^8 - 1 = 255 trigger values.
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David McFarlane
E-Prime training online: http://psychology.msu.edu/Workshops_Courses/eprime.aspx
Twitter: @EPrimeMaster (twitter.com/EPrimeMaster)
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