Dear mailinglist recipients, I am currently planning an optimized experiment using optseq2 and a 2x2 factors behavioral response task (Simon-task). The task consists of a pseudo-randomized series of two kinds of trials (congruent and incongruent). In addition there is a sequential factor, i.e. it is of interest whether a trial follows a trial of the same or the opposite kind. In other words there are (2x2) four different conditions where trials relate to precedent trials (AA,AB,BB,BA). Would it be possible to incorporate this sequential factor into the optseq2? I am aware that null events will fall between trials and thus interrupt trial sequences. Trials following null events would therefore be treated separately (i.e. for data analysis). In order to obtain an equal number of trials per condition, this would require increasing the number of trials depending on the number and order of null events. Currently I am able to produce a randomized order of equally balanced trials regarding trial type and sequential order (AA,AB,BB,BA). Any thoughts or suggestions are more than welcome!
Best, Tilman _______________________________________________ Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer
