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URL: http://www.nitrc.org/projects/pythagoras/
Proper Citation: Pythagorean Displacement and Motion Regressors (RRID:SCR_002525)
Description: Matlab script that uses the Pythagorean Theorem to calculate head motion and position, while preserving degrees of freedom. The motion parameters output by SPM (rp*.txt) estimate head position relative to the first volume in 3D translation and 3D rotation, which are often entered as a nuisance regressor during individual-level statistics. Regressing the total displacement and relative position can potentially explain more variance in voxel-level BOLD signals that is related to head movement during an fMRI experiment.
Abbreviations: Pythagorean Displacement and Motion Regressors
Resource Type: software resource
Keywords: algorithm, magnetic resonance, matlab, pythagorean theorem, head, motion, position, fmri
Availability: Free, Available for download, Freely available
Resource Name: Pythagorean Displacement and Motion Regressors
Resource ID: SCR_002525
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Source: SciCrunch Registry (RRID:SCR_005400)
Description: Interactive portal for finding and submitting biomedical resources. Resources within SciCrunch have assigned RRIDs which are used to cite resources in scientific manuscripts. SciCrunch Registry, formerly NIF Registry, provides resources catalog. Allows to add new resources. Allows edit existing resources after registration. Curators are tasked with identifying and registering resources, examining data, writing configuration files to index and display data and keeping contents current.
URL: https://rrid.site/rin/sources/SCR_005400
