This type of design is not suitable for optseq2. Furthermore, you only have 100s of task and almost 300s of scan time. This will lead to lots of empty space. You really need more than 2 conditions per event type.
Best Regards, Donald McLaren ================= D.G. McLaren, Ph.D. Research Fellow, Department of Neurology, Massachusetts General Hospital and Harvard Medical School Postdoctoral Research Fellow, GRECC, Bedford VA Website: http://www.martinos.org/~mclaren Office: (773) 406-2464 ===================== This e-mail contains CONFIDENTIAL INFORMATION which may contain PROTECTED HEALTHCARE INFORMATION and may also be LEGALLY PRIVILEGED and which is intended only for the use of the individual or entity named above. If the reader of the e-mail is not the intended recipient or the employee or agent responsible for delivering it to the intended recipient, you are hereby notified that you are in possession of confidential and privileged information. Any unauthorized use, disclosure, copying or the taking of any action in reliance on the contents of this information is strictly prohibited and may be unlawful. If you have received this e-mail unintentionally, please immediately notify the sender via telephone at (773) 406-2464 or email. On Thu, Jul 16, 2015 at 6:17 PM, Heeyoung Choo <heeyoung.c...@utoronto.ca> wrote: > Hello, > > I'm trying to create trial sequences for a slow event related fMRI > experiment. > I have 10 classes of stimuli, and each stimulus lasts 5 sec and repeats > twice in a run. > > > Environment: Linux 3.13.0-35-generic #62-Ubuntu SMP UTC 2014 x86_64 x86_64 > x86_64 GNU/Linux > > > I ran: > > ./optseq2 --ntp 144 --tr 2.5 \ > --ev evt1 5 2 --ev evt2 5 2 --ev evt3 5 2 --ev evt4 5 2 --ev evt5 5 2 --ev > evt6 5 2 --ev evt7 5 2 --ev evt8 5 2 --ev evt9 5 2 --ev evt10 5 2 \ > --nkeep 10 --psdwin 0 20 --o exp_video \ > --tnullmax 25 --tnullmin 7.5 \ > --nsearch 10000 > > Almost all of the sequences have extremely long NULL at the end of a run, > like 82.5sec (please see one of sequences below). > I am aware that optseq2 is for rapid event related fMRI, and wonder if the > problem is due to specific parameters of my design, or due to a bug. I > would appreciate any comments or help. > > Thank you very much! > > Best regards, > Heeyoung > > > 0.0000 5 5.000 1.0000 evt5 > 5.0000 0 7.500 1.0000 NULL > 12.5000 9 5.000 1.0000 evt9 > 17.5000 0 7.500 1.0000 NULL > 25.0000 3 5.000 1.0000 evt3 > 30.0000 0 7.500 1.0000 NULL > 37.5000 10 5.000 1.0000 evt10 > 42.5000 0 12.500 1.0000 NULL > 55.0000 7 5.000 1.0000 evt7 > 60.0000 0 10.000 1.0000 NULL > 70.0000 3 5.000 1.0000 evt3 > 75.0000 0 7.500 1.0000 NULL > 82.5000 4 5.000 1.0000 evt4 > 87.5000 0 15.000 1.0000 NULL > 102.5000 6 5.000 1.0000 evt6 > 107.5000 0 7.500 1.0000 NULL > 115.0000 6 5.000 1.0000 evt6 > 120.0000 0 10.000 1.0000 NULL > 130.0000 8 5.000 1.0000 evt8 > 135.0000 0 17.500 1.0000 NULL > 152.5000 1 5.000 1.0000 evt1 > 157.5000 0 7.500 1.0000 NULL > 165.0000 2 5.000 1.0000 evt2 > 170.0000 0 7.500 1.0000 NULL > 177.5000 10 5.000 1.0000 evt10 > 182.5000 0 7.500 1.0000 NULL > 190.0000 8 5.000 1.0000 evt8 > 195.0000 0 7.500 1.0000 NULL > 202.5000 9 5.000 1.0000 evt9 > 207.5000 0 12.500 1.0000 NULL > 220.0000 4 5.000 1.0000 evt4 > 225.0000 0 7.500 1.0000 NULL > 232.5000 7 5.000 1.0000 evt7 > 237.5000 0 7.500 1.0000 NULL > 245.0000 1 5.000 1.0000 evt1 > 250.0000 0 7.500 1.0000 NULL > 257.5000 5 5.000 1.0000 evt5 > 262.5000 0 10.000 1.0000 NULL > 272.5000 2 5.000 1.0000 evt2 > 277.5000 0 82.500 1.0000 NULL > _______________________________________________ > Freesurfer mailing list > Freesurfer@nmr.mgh.harvard.edu > https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer > > > The information in this e-mail is intended only for the person to whom it > is > addressed. If you believe this e-mail was sent to you in error and the > e-mail > contains patient information, please contact the Partners Compliance > HelpLine at > http://www.partners.org/complianceline . If the e-mail was sent to you in > error > but does not contain patient information, please contact the sender and > properly > dispose of the e-mail. > >
_______________________________________________ Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer The information in this e-mail is intended only for the person to whom it is addressed. If you believe this e-mail was sent to you in error and the e-mail contains patient information, please contact the Partners Compliance HelpLine at http://www.partners.org/complianceline . If the e-mail was sent to you in error but does not contain patient information, please contact the sender and properly dispose of the e-mail.
