Thanks, I am currently trying to figure out a way to translate the data I get out of FS which defaults to a single rotating wedge to my double wedge experiment. It seems to me that the positive and negative angles are reversed for each hemisphere. Does FS do some kind of mirroring for angles for each hemisphere so that angles on the upper visual field are always positive?
Best, Mohamed From: Douglas Greve Sent: Tuesday, February 9, 2016 1:29 AM To: freesurfer@nmr.mgh.harvard.edu Subject: Re: [Freesurfer] Zero angle for retinotopy Yes, 0 is where the wedge starts. doug On 2/7/16 7:56 AM, Mohamed Abdelhack wrote: Does this mean that the zero angle is the one where the wedge starts rotating in the experiment? Does this apply to eccentricity experiment also (In my lab's protocol it doesn't start from zero)? On Sat, Feb 6, 2016 at 2:20 AM, dgw <dgwake...@gmail.com> wrote: Hi, I know Doug is away, so he may correct me later, but I believe it doesn't matter, as long as it is consistent across runs, and you know what it is. It will just determine where the angle 0 activity goes (in a color map etc.). The way FS-FAST does the mapping it just may mean your colors don't line up with others. hth d On Thu, Feb 4, 2016 at 11:52 PM, <m.abouelya...@gmail.com> wrote: > Dear all, > > > > I am wondering about what the zero angle for retinotopy corresponds to in > retinotopy analysis. I mean corresponding to the wedge being at zero angle > in circular coordinate map (horizontal) or vertical up? > > > > Thank you, > > Best, > > > > > _______________________________________________ > Freesurfer mailing list > Freesurfer@nmr.mgh.harvard.edu > https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer > > > The information in this e-mail is intended only for the person to whom it is > addressed. If you believe this e-mail was sent to you in error and the > e-mail > contains patient information, please contact the Partners Compliance > HelpLine at > http://www.partners.org/complianceline . If the e-mail was sent to you in > error > but does not contain patient information, please contact the sender and > properly > dispose of the e-mail. > _______________________________________________ Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer _______________________________________________ Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer
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