Is there a way to make a picture appear on top of a shape (so that if a shape and a picture overlap, the picture will be on top)? I would like a picture to have a colored border, so I would like to make my picture show up on top of a rectangle.

I realize that maybe you could draw several rectangles around the picture to try to make a border that way, but because my picture is defined with specific pixel dimensions and I have to use percentages of the screen width/height to define the position of the shapes, I am having a hard time doing it precisely enough with that approach.

Can someone help me out?

Hmm, you're probably just missing the fact that Inquisit's '/ stimulusframes' and '/ stimulustimes' attributes are sensitive to the ordering of elements. Suppose you have defined <picture bunny> and <shape border>. The following <trial> element will draw the shape on top of the picture

<trial shapeontop>
/ stimulusframes = [1=bunny, border]
[...]
</trial>

while defining

<trial picontop>
/ stimulusframes = [1=border, bunny]
[...]
</trial>

will draw the picture on top of the shape (which is what you want). Please see the attached files for further reference.

Best wishes from a fellow Inquisit user,

~Dave

yup, that was exactly right.. thanks!