The assumption is that it starts at the center/fovea. It will affect some things but not others. It will not affect the p-values. When you look at the eccentricity maps, they will be shifted in angle. I'm not sure how this will affect the field sign maps.
doug On 01/09/2015 11:32 AM, Jackie Lam wrote: > Hello, > > For retinotopy, what does Freesurfer assume to be the start position for the > expanding and contracting rings? Currently, my stimulus is such that it > starts some where in the middle between fully contracted and fully expanded > for both the expanding and contracting runs. Will it affect the analysis? > > Thanks, > > Jack > > > _______________________________________________ > Freesurfer mailing list > Freesurfer@nmr.mgh.harvard.edu > https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer > > -- Douglas N. Greve, Ph.D. MGH-NMR Center gr...@nmr.mgh.harvard.edu Phone Number: 617-724-2358 Fax: 617-726-7422 Bugs: surfer.nmr.mgh.harvard.edu/fswiki/BugReporting FileDrop: https://gate.nmr.mgh.harvard.edu/filedrop2 www.nmr.mgh.harvard.edu/facility/filedrop/index.html Outgoing: ftp://surfer.nmr.mgh.harvard.edu/transfer/outgoing/flat/greve/ _______________________________________________ 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.
