Hello all, I am using Caret for retinotopic mapping. For mapping the volumetric phase data of the polar angle mapping experiment to the surface, I am now using the enclosing voxel algorithm. However, I noticed that other mapping algorithms that use data from more voxels (such as metric_gaussian) can produce significantly better results. Problem however is that any algorithm that averages over voxels gives incorrect results near locations where the arithmatic mean over voxels is different from the 'angular' mean (e.g. a polar angle of 359 degr. and 1 degr is averaged to 180 degrees). Does anyone know of a way to circumvent this problem? Kind regards, Mathijs Raemaekers ****************************** Mathijs Raemaekers Functional Neurobiology Utrecht University Padualaan 8 3584 CH Utrecht Netherlands
tel: +31-30-2531904 fax: +31-30-2532837
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