Statistical parametric mapping: Difference between revisions

Revision as of 10:37, 11 July 2007

Revision as of 02:14, 8 September 2007

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==The statistical parametric mapping approach==

===Unit of measurement===

Functional neuroimaging, one type of 'brain scanning', involves the measurement of brain activity. The specific technique used to measure brain activity depends on the imaging technology being used (see [[fMRI]] and [[Positron Emission Tomography|PET]] for examples). Regardless of which technology is used, the scanner produces a 'map' of the area being scanned that is represented as [[voxel|voxels]]s. Each voxel typically represents the activity of a particular co-ordinate in three dimensional space. The exact size of a voxel will vary depending on the technology used, although fMRI voxels typically represent a volume of 27 mm³ (a cube with 3mm length sides).

===Experimental design===

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==External links==

* [http[b://en.wikibooks.org/wiki/SPM |Wikibooks]] SPM Wikibook.

* [http://www.fil.ion.ucl.ac.uk/spm/ SPM] software and documentation from the Wellcome Department of Imaging Neuroscience.

* [http://www.mrc-cbu.cam.ac.uk/Imaging/Common/ Cambridge Imagers] - Neuroimaging information and tutorials.

* [http[b://en.wikibooks.org/wiki/SPM-Information_to_include_in_papersInformation to include in papers|SPM-Information to include in papers]]

* [http://spect.yale.edu ISAS (Ictal-Interictal SPECT Analysis by SPM)] - Yale University

* [http://www.imagilys.com/autospm.html AutoSPM: Automated SPM for Surgical Planning]