Oddball

paras

We are designing an oddball task wherein we need to present the oddball after the standard stimulus is presented but our is varied from 4-7 such that the oddball is either presented after every 4, 5, 6 or 7 standard stimuli are presented within one block. But how do we design such experiment?

eduard

Hi @paras,

Either you use some Python coding, to design a sequence that adheres to your restrictions. Or you can try to use pseudorandomization in the loop item: https://osdoc.cogsci.nl/4.0/manual/structure/loop/#pseudorandomization

Something like mindist <var> 4 should work.

Hope this helps,

Eduard