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I want to set up an experiment in which there are 3 types of emotional stimuli (A, B, C). A and C would have a 1% recurrence probability, for rare and unexpected stimuli. Is there any sample of oddball paradigm for E-Prime?

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Pstnet, the editor of Eprime, does not provide a sample for oddball paradigms. And sharing Eprime scripts is rare but you may find a script of interest here

http://www.nitrc.org/frs/download.php/283/AO_version110804.zip

This is part of an initiative described at http://www.birncommunity.org/resources/tools/fire-primer/multi-site-cognitive-paradigms-for-fmri-studies. File summaries are here http://www.nitrc.org/projects/fbirn (click on "see all files"). This auditory oddball file is far from being a sample though.

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  • $\begingroup$ Thank you for sharing this information. I am looking at the file and hopefully I can built up my experiment. However, I cannot run this oddball because it is looking for the scanner. $\endgroup$ – Dana Sugu Jul 18 '13 at 5:13
  • $\begingroup$ There is a place that shares some E-prime scripts: step.psy.cmu.edu/scripts $\endgroup$ – Dana Sugu Jul 18 '13 at 8:40
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    $\begingroup$ Nice - Here is a visual oddball task I programmed with e-prime 1.2 - gsite.univ-provence.fr/gsite/Local/lpc/dir/dufau/share/… $\endgroup$ – marsei Jul 18 '13 at 9:48
  • $\begingroup$ Thank you so much. I can run it fine. I shall learn from you how to programme my experiment. Probably I have to acknowledge your help, if you provide me with the details. :) Thank you again. $\endgroup$ – Dana Sugu Jul 18 '13 at 15:13
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Not that it answers your specific question, but there is this Inquisit script for auditory oddball: http://millisecond.com/download/library/oddball

There is a 30-day trial version of Inquisit.

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