I was wondering if someone could help me answer a relatively simple question:
I set up a paradigm file (called recall.par) as follows:
0 1 18 2 21 3 27 1 45 2 48 3 and so on... Where in the right column, condition 1 is blank screen, 2 is a room with a lamp, and 3 is the lamp turned on.
My question is:
When I run the analysis to compare condition 2 to condition 1, does it subtract the average activation from 18-21 seconds minus the average activation from 0-18 seconds? Or does it simply subtract timepoint 18 from timepoint 0? Or what?
When I set up a contrast to do condition 2 minus 1, I expected visual cortex activation, but instead, I saw deactivation. I am trying to figure out why this is the case. Any help would be greatly appreciated.
thanks, Moe
Mohamed Zeidan Research Assistant Behavioral Neuroscience Laboratory Department of Psychiatry Massachusetts General Hospital (617) 643-4756
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From: freesurfer-bounces@nmr.mgh.harvard.edu [mailto:freesurfer-bounces@nmr.mgh.harvard.edu] On Behalf Of Lena Palaniyappan Sent: Monday, March 22, 2010 4:43 PM To: freesurfer@nmr.mgh.harvard.edu Subject: [Freesurfer] Displaying parcellation labels asegstats2table
I am trying to obtain mean intensities of Destrieux parcellations using the following command.
asegstats2table --subjects <subjid vbms08> --meas mean --statsfile lh.aparc.a2009s.stats --tablefile somename.txt
But the output text files does not contain any label names. instead it contains the following as output
Measure:mean 2.184 2.442 2.307 2.755 2.869 2.632 2.360 2.073 2.901 2.617 2.186 2.890 3.070 2.748 2.759 2.777 3.201 3.737 2.801 2.376 2.893 1.964 2.967 2.928 2.886 2.778 2.426 2.316 2.805 2.567 2.320 2.522 2.809 3.307 4.177 2.774 2.732 3.128 2.232 2.691 2.258 0.737 2.148 3.682 2.066 1.856 1.972 2.999 2.651 2.521 2.978 1.969 2.207 2.443 2.369 2.455 2.099 1.856 1.821 2.293 2.698 2.386 1.973 2.096 2.393 2.129 2.122 1.981 2.359 2.276 2.645 2.204 2.382 2.379 2.709 vbms08 0.509 0.525 0.482 0.442 0.444 0.706 0.706 0.595 0.551 0.615 0.468 0.499 0.338 0.518 0.472 0.588 0.54 0.881 0.606 0.554 0.453 0.518 0.949 0.763 0.565 0.53 0.52 0.492 0.491 0.522 0.731 0.909 0.393 0.518 0.631 0.448 0.953 0.673 0.305 0.631 0.521 1.353 0.552 0.828 0.595 0.457 0.607 0.538 0.643 0.5 0.721 0.43 0.471 0.53 0.492 0.333 0.471 0.457 0.451 0.489 0.549 0.452 0.427 0.661 0.608 0.531 1.182 0.41 0.476 0.481 0.777 0.559 0.677 0.547 0.417
How can I get the parcellation labels displayed?
Cheers Lena
_______________________________________________________ Lena Palaniyappan Clinical Lecturer & Honorary StR | Division of Psychiatry ( University of Nottingham) South Block 'A' floor| Queens Medical Centre | Nottingham | NG7 2UH
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