PsychoPy v3.0.7 (standalone)
I want to create a dot stimulus with dots that have an infinite dot life time and a 100% coherent motion direction, though with the concentration of dots over the aperture to be homogeneous at any time in the stimulus duration. It is known that this is not the case when using the default DotStim settings in the Builder and only altering coherence to 1.0 and dot life time to -1 (infinite).
I found this GitHub code that exactly describes this problem and, I think, offers a solution:
Link to GitHub
It is unclear to me if this is an earlier version of the DotStim code? Because it is also called “dot.py”? Is it is an alteration? And, if so, how could I implement this code when using the builder? Should I store this file at the appropriate folder in the PsychoPy application folder instead of the “dot.py” file that came with the installation?
Is any of you familiar with this code on GitHub and does it indeed provide a solution for my problem?