Forced Choice Image Presentation (case 14147)

[jason_reed]

Rachael,


To find insructions on how to put two images on the screen at the same time as well as an example input file, please refer to the Compound Screen section of the DirectRT manual: http://www.empirisoft.com/directrt/h...nd_screens.htm.


To randomly detemine whether an image will appear on the right side or the left side, the most straightforward way is to create two different conditions-one in which image 1 appears on the left and image 2 appears on the right and one in which image 2 appears on the left and image 1 appears on the right. Take a look at the attached files to get an idea about how to do this.


Finally, take a look at the stimlists section of the DirectRT manual for specific information about randomly selecting stimuli for presentation: http://www.empirisoft.com/directrt/h...ectrt_stim.htm


Please let me know if you have any questions.


Jason