Hi Chris
I am working on an experiment very close to Simon’s work,
In my code, I am showing a bunch of 1-second movies to the monkey and will stimulate his brain in the middle of the movie
My question is: my stimulus size is 8 degree in mwork’s code, and my movie size is 1024x1024,
1- if I change the movie’s size to 512x512, does it going to be converted to 8 degrees automatically by mwork or not?
2- how can I convert 8 degrees in mwork to pixel size in monitor?!
Best
Elia
Hi Elia,
if I change the movie’s size to 512x512, does it going to be converted to 8 degrees automatically by mwork or not?
Yes, it will be the same size in degrees on the display, regardless of the pixel dimensions.
how can I convert 8 degrees in mwork to pixel size in monitor?!
Specifying sizes in pixels isn’t something that MWorks currently supports. Adding support for alternative coordinate systems has been on my to-do list for a while, but since no one has really been pushing for it, it hasn’t happened yet.
You might be able to work in pixels via carefully chosen display dimensions, but I haven’t thought through the math of that in detail. For more info on how MWorks’ display coordinates work, please see this discussion.
Cheers,
Chris