AFNI Message Board

Dear AFNI users-

We are very pleased to announce that the new AFNI Message Board framework is up! Please join us at:

https://discuss.afni.nimh.nih.gov

Existing user accounts have been migrated, so returning users can login by requesting a password reset. New users can create accounts, as well, through a standard account creation process. Please note that these setup emails might initially go to spam folders (esp. for NIH users!), so please check those locations in the beginning.

The current Message Board discussion threads have been migrated to the new framework. The current Message Board will remain visible, but read-only, for a little while.

Sincerely, AFNI HQ

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Juan
August 18, 2019 03:09AM
Hi, List experts,

I was thinking to report the activity wave for the region of my interest (ROI). I just found that in fact there is a function in the "Display": RowGraphs. According to the help, it says, "Rowgraphs lets you graph the voxel values from image rows". For instance, for my case, it shows two waves (one is in color, one is in black with the ROI point) -see the attached png file.

I do not know what does the x-axis "Column (pixels)" mean? What should be the y-axis? Is it "signal change"? If I report this, how should I say - it is meaningful? I was thinking that perhaps, the x-axis stands for the time (sec), but the scale 0-200 is confusing.

Thank you very much,
J
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open | download - temp.png (52.9 KB)
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how to interpret the Rowgraphs Attachments

Juan August 18, 2019 03:09AM

Re: how to interpret the Rowgraphs

ptaylor August 19, 2019 12:16PM

Re: how to interpret the Rowgraphs

Juan August 19, 2019 04:48PM