3 ms·
Interesting. I'm wondering if the PsychoPy devs have noticed this.
by chenning 5y ago
Interesting. I'm wondering if the PsychoPy devs have noticed this.
- esalman 5y agoThey did- https://psychopy.org/general/timing/millisecondPrecision.html#delays-caused-by-drivers-and-os https://psychopy.org/general/timing/millisecondPrecision.htm... > The stimulus presentation on MacOS used to be very good, up until version 10.12. In MacOS 10.13 something changed and it appears that a form of triple buffering has been added and, to date, none of the major experiment generators have managed to turn this off. As a result, since MacOS 10.13 stimuli appear always to be presented a screen refresh period later than expected, resulting in a delay of 16.66 ms in the apparent response times to visual stimuli.