Splitting the volume is definitely not required though. Peace,
Matt. -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Laumann, Timothy Sent: Tuesday, August 09, 2011 4:10 PM To: Caret, SureFit, and SuMS software users Subject: Re: [caret-users] Viewing time series data overlaid on surface Hi Ali, I actually don't think it's too tough. Assuming you have already got the EPI registered appropriately to the anatomy the surface was generated from, you can just map the volume to the surface using Map Volume to Surface under Attributes, or using caret_command -volume-map-to-surface. In my experience, if you use caret_command, it works best if you split the volume into individual volumes for each timepoint before mapping. Once you've done the mapping you should have metric columns that can be loaded into Caret which you can then view sequentially by scrolling through them in Overlay/Underlay Surface (D/C) or animate under Metric Miscellaneous (D/C) options. Good luck, Tim ________________________________________ From: [email protected] [[email protected]] On Behalf Of Donna Dierker [[email protected]] Sent: Tuesday, August 09, 2011 8:49 AM To: Caret, SureFit, and SuMS software users Subject: Re: [caret-users] Viewing time series data overlaid on surface Strictly speaking, yes, but practically speaking, this is rarely done. The EPI must be volume registered to the anatomical used to generate the surface. Depending on how the surface was generated, some surface translations/flips might be necessary to align the surface with the volume. Typically, statistical output maps are overlaid on the surface (e.g., activity doing task A over baseline) -- not raw EPI. But there are methods for animating the rendering of metric columns, if they are captured at different timepoints. I have not done it, but others have done so. No promises on how easy it is. > Hi, > I couldn't find this in the documentation and among the tutorials so > I'm giving this a shot here. Is there a way to overlay a 4d data (the > 4th dimension being the time, such as a raw EPI sequence) overlaid on > a brain surface? > Thanks, > -- > Ali B Arslan, M.Sc. > Cognitive, Linguistic and Psychological Sciences > Brown University > _______________________________________________ > caret-users mailing list > [email protected] > http://brainvis.wustl.edu/mailman/listinfo/caret-users > _______________________________________________ caret-users mailing list [email protected] http://brainvis.wustl.edu/mailman/listinfo/caret-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. _______________________________________________ caret-users mailing list [email protected] http://brainvis.wustl.edu/mailman/listinfo/caret-users _______________________________________________ caret-users mailing list [email protected] http://brainvis.wustl.edu/mailman/listinfo/caret-users
