New release 3.2.0

[rob-linguistics13]

Hi @jon,

thanks for this new updated version of PsychoPy! I have some questions regarding the following item:

@jon

Better stimulus timing in Builder scripts

The other big change (and beware this will probably alter the timing of your existing studies) is that experiements setting the start/stop of components using Time (s) settings will have different timing. PsychoPy has a new function Window.getFutureFlip() allowing us to find out the time of the next screen refresh, which allows more accurate timing tests for your visual stimulus components. Rather than basing a decision (should we draw that stimulus?) on the current time the decision is now based on what the time will be when the flip occurs. This should mean that the previous advice to use Frames for timing of short stimuli will no longer be needed.

Can you clarify whether this is also true for PsychoJS? I have been collecting data with PsychoJS (PsychoPy ver. 3.1.1) for the whole summer and I have noticed that stimulus timing for short routines (~34 ms) is very unstable (see this topic). This has forced us to collect data from more subjects than usual so to ensure a reasonable amount to data to analyze after trimming trials with the exceeding prime durations. It would be great if you guys had figured out how to make durations of short routines more stable in PsychoJS because it would allow us to save time and money.

Thanks!
-roberto