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2 seconds is probably worth fixing. You could use MELODIC ICA analysis to find out what's going on in your data. Steve. On 19 Jul 2007, at 18:53, Manish Dalwani wrote: > Hello Neuroimaging folks, > > I have a rapid event related task which has 3 runs each 10 mins 23 > secs long. In the last run for some wierd technical reason, the > timing is off by 2 secs...i.e. the scan ran for 10:23 but the task > (which has some MR Triggered events) finished in 10:21 secs. Should > I then just discard this data? How critical is 2 secs? > > Is there any way to tap in the data and look for possible > variations and catch it then? In short, I'd hate to throw out data > if there is a possible fix. > > Kindly advise. > > Manish Dalwani > Sr. PRA > Dept. of Psychiatry > UCHSC > > Get the Yahoo! toolbar and be alerted to new email wherever you're > surfing. ------------------------------------------------------------------------ --- Stephen M. Smith, Professor of Biomedical Engineering Associate Director, Oxford University FMRIB Centre FMRIB, JR Hospital, Headington, Oxford OX3 9DU, UK +44 (0) 1865 222726 (fax 222717) [log in to unmask] http://www.fmrib.ox.ac.uk/~steve ------------------------------------------------------------------------ ---