WebNov 22, 2024 · Psychtoolbox is a third party product . Everything it does with regards to synch and retrace is custom to it using operating system specific dll. The only part of what you posted that is related to matlab is that the Screen() call would be … WebApr 11, 2024 · Psychtoolbox-3. Psychophysics Toolbox Version 3 (PTB-3) is a free set of Matlab and GNU Octave functions for vision and neuroscience research. Psychophysics Toolbox Version 3 (or short "PTB") extends MATLAB with functions for research grade neuroscience stimulus presentation and response collection. The PTB core routines …
VBL (vertical retrace) syncing problem - Hardware
http://psychtoolbox.org/docs/PerceptualVBLSyncTest WebJul 10, 2024 · On this Windows-10 or later system, Psychtoolbox can no longer reliably detect if. PTB-INFO: this will cause trouble for timing and integrity of visual stimuli or not. ... of Psychtoolbox to the vertical retrace (VBL) is not working on your setup. 7 Comments. Show Hide 6 older comments. dbd charity case cosmetics
About errors in screen functions of Psychtoolbox
WebMar 18, 2024 · The Screen ('Flip') command will wait to present the stimulus at the appropriate time, the 'iframe' loop is not needed and is what is causing your issue. An example modified from your code is included below (I had to add a few things that weren't defined in your example). Wrapping the code in a try / catch statement isn't necessary, but … WebDec 18, 2024 · This indicates massive problems with VBL sync. ----- ! PTB - ERROR: SYNCHRONIZATION FAILURE ! -----. One or more internal checks (see Warnings above) … WebMar 19, 2024 · This indicates massive problems with VBL sync.----- ! PTB - ERROR: SYNCHRONIZATION FAILURE ! ----One or more internal checks (see Warnings above) indicate that synchronization of Psychtoolbox to the vertical retrace (VBL) is not working on your setup. This will seriously impair proper stimulus presentation and stimulus … dbd chapter timeline