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

History of AFNI updates  

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August 15, 2022 04:02PM
Thank you!
I was able to successfully create a 1D file for each subject that shows the outlier fraction for each time point for the left and then the right HIP.

How can I now calculate the number of timepoints/volumes that exceed a certain threshold for outliers in the 1D file?
For my analysis I need to have a temporal continuity of the data. This means I can not censor individual volumes. Instead I want to use the number of volumes that would need to be censored based on outlier fraction as a criteria for whether to exclude a subject or not.

Also how is the count calculated? Is it the number of spikes averaged across all voxels in my ROI for each timepoints? If so isn t that similar to the fraction? In what instances is it recommended to use the counts and in what the fraction?

Carolin
Subject Author Posted

what measure is recommended to summarize "spikiness" in an area

carolin31 August 04, 2022 10:29PM

Re: what measure is recommended to summarize "spikiness" in an area

ptaylor August 05, 2022 10:14PM

Re: what measure is recommended to summarize "spikiness" in an area

carolin31 August 15, 2022 04:02PM

Re: what measure is recommended to summarize "spikiness" in an area

carolin31 December 21, 2022 01:45PM

Re: what measure is recommended to summarize "spikiness" in an area

ptaylor December 23, 2022 09:15AM

Re: what measure is recommended to summarize "spikiness" in an area

carolin31 January 12, 2023 08:54PM

Re: what measure is recommended to summarize "spikiness" in an area

carolin31 January 23, 2023 05:22PM

Re: what measure is recommended to summarize "spikiness" in an area

ptaylor January 24, 2023 08:18AM

Re: what measure is recommended to summarize "spikiness" in an area

carolin31 January 25, 2023 08:54PM

Re: what measure is recommended to summarize "spikiness" in an area

carolin31 February 08, 2023 08:04PM

Re: what measure is recommended to summarize "spikiness" in an area

rick reynolds February 08, 2023 08:34PM

Re: what measure is recommended to summarize "spikiness" in an area

carolin31 February 10, 2023 04:12PM

Re: what measure is recommended to summarize "spikiness" in an area

carolin31 February 13, 2023 10:49PM

Re: what measure is recommended to summarize "spikiness" in an area

rick reynolds February 13, 2023 11:41PM

Re: what measure is recommended to summarize "spikiness" in an area

carolin31 February 14, 2023 01:43PM

Re: what measure is recommended to summarize "spikiness" in an area Attachments

carolin31 March 06, 2023 03:20PM