I was wondering if you could help me regarding uses of directRT.

Two questions:

1. I am trying to create a visual search paradigm using directRT. This requires 12 separate images to be randomly located on the screen (locations change between trials). This means that 12 separate images will need to be visible to observers at any one time. Is it possible to do this?

2. Also observers will be asked to detect motion amongst the images this means that one of the 12 images will have to move across the screen. Is this also an option using directRT?

I am trying create a simplified replicate of the Harris, McKee and Watamaniuk (1998) experiment. Link below:

Any help you could provide will be much appreciated

Emma Hutchings