How do I obtain coordinates from a participant's clicks? (Also: Image size on different computers)
I am a beginner in OpenSesame and am trying to learn what participant's perceive as the central point or value of different portions of an image. I want to set up my experiment such that when the participant clicks with their mouse/trackpad it will enter into the log file as an x,y coordinate. Is there an easy way to do that?
Will there be issues in logging responses if some participants use a trackpad vs a mouse?
I was working with Psychtoolbox when looking at coordinates in my image before and the coordinate system starts in the upper left corner while I believe in Opensesame it starts at the centre at 0,0.What is an easy way of reversing this?
Will the image that appears be different on different computers and their respective screen sizes(Mac, Linux, Desktop comps.. and would that affect the coordinates in any way?
Thank you so much in advance