Re: [HCP-Users] help for head motion parameters threshold

[Harms, Michael]

Typically, we care more about the "relative" (frame-to-frame) motion.  If you wanted to exclude based on the mean across the whole run you could use the number in the "Movement_RelativeRMS_mean.txt" file.  If you wanted to implement a censoring/scrubbing of individual frames you could use the contents of "Movement_RelativeRMS.txt". In terms of thresholds to suggest, I'm afraid we don't have any concrete suggestions at this stage, as this is an ongoing topic of investigation. cheers, -MH --  Michael Harms, Ph.D. ----------------------------------------------------------- Conte Center for the Neuroscience of Mental Disorders Washington University School of Medicine Department of Psychiatry, Box 8134 660 South Euclid Ave. Tel: 314-747-6173 St. Louis, MO  63110 Email: mha...@wustl.edu From: peipei_xiao <sky9...@126.com> Date: Tuesday, November 10, 2015 9:39 PM To: "hcp-users@humanconnectome.org" <hcp-users@humanconnectome.org> Subject: [HCP-Users] help for head motion parameters threshold Hi, I call the following six scripts( in Pipelines-3.10.0/Examples/Scripts/) to handle lifespan data ./PreFreeSurferPipelineBatch.sh ./FreeSurferPipelineBatch.sh ./PostFreeSurferPipelineBatch.sh ./GenericfMRIVolumeProcessingPipelineBatch.sh ./GenericfMRISurfaceProcessingPipelineBatch.sh ./IcaFixProcessingBatch.sh After preprocessing, I get head motion parameters. Here is head motion parameters files for each subjects: Movement_AbsoluteRMS.txt Movement_AbsoluteRMS_mean.txt Movement_RealtiveRMS.txt Movement_RealtiveRMS_mean.txt Which head motion parameters file should I be based on to exclude subjects because of their too big head motion? And How much is the head motion parameter threshold should choose?   _______________________________________________ HCP-Users mailing list HCP-Users@humanconnectome.org http://lists.humanconnectome.org/mailman/listinfo/hcp-users   The materials in this message are private and may contain Protected Healthcare Information or other information of a sensitive nature. If you are not the intended recipient, be advised that any unauthorized use, disclosure, copying or the taking of any action in reliance on the contents of this information is strictly prohibited. If you have received this email in error, please immediately notify the sender via telephone or return mail. _______________________________________________ HCP-Users mailing list HCP-Users@humanconnectome.org http://lists.humanconnectome.org/mailman/listinfo/hcp-users