Hi Lindsey,
Is there available code to reconstruct the stimulus from the seed used to initiate it for offline analysis?
I don’t recommend trying to do that. To quote myself from another discussion:
While it’s entirely possible, starting with the seed value and parameters of the stimulus and display, to re-create the entire sequence of noise images outside of MWorks, there are many details that you need to get exactly right. If you mess up the computation at any point, you can end up generating noise that’s entirely different from what was actually displayed during the experiment. If I were doing this experiment myself, and I really cared about the precise pixels that were displayed on screen, I would be very, very uncomfortable with this approach.
Instead of trying to reconstruct the noise, I’d recommend using stimulus display frame capture to save each noise image for later analysis.
I’d like to create a gaussian spatiotemporal frequency noise stimulus where I could define the spatial and temporal frequency cutoffs. If this is something you might have time for in the near future, I can send more details from a methods section.
That actually sounds similar to something I developed for Mark Histed’s lab a few years ago. Sure, please send more details.
Cheers,
Chris