psychopy grating stim and psychopy_textstim
I have been trying to find documentation on how these components work but remain stuck in a couple issues. If I am missing some relevant info in the OS website, I apologise, please let me know
This is very basic....I just want to know how can I present a gabor or a piece of text for a specified time frame? eg 30 ms, 2 refreshes...These objects have an option "Update every" and "Drawing order" but not sure what they are for and whether they are relevant here
I can also see that at the bottom of the object (below where it says Drawing first) there is an option to write python code. I tried to put here some commands:
but I can not get it to work, it just does not wait for the period I indicate...
Any help appreciated!!
PS I elected to use the psychopy_textstim object over the sketchpad for text becos with the later I can't see an easy way of modulating, trial by trial, the luminance of the text. But I may be wrong here?