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| = Problem with two-pass normalisation = The standard aa normalisation routine ([http://imaging.mrc-cbu.cam.ac.uk/imaging/AutomaticAnalysisVersions#head-20f22d73e91b461dcf6bf69e792269bdce21ecf4 Automatic Analysis normalisation with segment]) may fail in certain cases. The example below illustrates it: at the bottom, the normalised brain on the left is smaller and has not been reoriented correctly. |
= FMRI analysis problems = Here is an incomplete list of problems we've come up against in FMRI analysis: |
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| In order to allow monitoring of such occurrences, please mail to imagerstech@mrc-cbu.cam.ac.uk if you notice this problem. Our solution: For this participant, we used the SPM normalize procedure instead of the aamod_norm_noss and rewrite modules. |
* RemoveBadScans * ProblemTwoPassNormalization * ReverseNormalization * [[Transforming_SPM_world_coordinates_to_voxel_coordinates]] * [[GettingaRegionsCentreOfMass|Getting a region's centre of mass]] * [[Extracting_beta,_standard_error_and_confidence_interval_for_a_coordinate]] |
FMRI analysis problems
Here is an incomplete list of problems we've come up against in FMRI analysis: