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ken.roberts
Junior Member
26 Posts |
 Posted - Jul 10 2006 : 10:21:57 AM
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Just writing to let you all know about a problem that I encountered running with Presentation on the 3T last week. In my paradigm, I briefly display images on the screen, each with a duration of 133ms. In analyzing the log files, I noticed that for brief periods, the timing would get really poor-- and that these periods increased in terms of their proportion of the run as time went on.
These two images are histograms of the stimuli duration-- the first from two weeks ago, and the second from last week:
I found that the problem could be avoided by rebooting every time before you run. |
Woldorff Lab
Center for Cognitive Neuroscience
(919) 668-1334 |
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Timing problem with presentation.
