Geoff,
I am following up on my previous message with a few more comments on the subject of
the Psychtoolbox and OS 9 emulation under OS X.
Because the timing is not reliable, I recommend sticking with the genuine OS 9 when
using the Psychtoolbox, and not using the emulated OS 9 for the Psychtoolbox unless
you are only displaying static images for long durations and you do not care about
synchronizing their onset and offset with the vertical blank.
That you want to use the Psychtoolbox should not prevent you from installing OS X.
Both OS 9 and OS X can be installed on the same Mac and you can choose which to boot
each time you restart your computer. (Use the startup disk control panel). Having
to restart your computer is inconvenient. I am interested in producing an OS X
native version of the Psychtoolbox, but doing that would depend on the Mathworks
releasing a version of MATLAB for OS X, unless we decide to switch away from MATLAB
to something similar.
Allen
"Allen W. Ingling" wrote:
> Geoff Loftus wrote:
>
> > Has anyone out there been using matlab and the Psychophysics toolbox in the
> > classic window of OSX? Any problems? Any comments? Any issues? I haven't used
> > OSX yet mostly because of worries about matlab.
>
> Geoff,
>
> To answer your question I tried many of the demos included with the Psychtoolbox
> in the OS 9 emulation window under OS 10.1.2 on a PowerBook G4.
>
> I found that the demos which depend on precise timing do not work reliably.
> Movie playback is glitchy, for example SaccadeDemo.m and MovieDemo2.m have
> prominent artifacts. I did not discover any problems other than timing.
>
> Best,
>
> Allen
>
>
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