SDM exploration of the results
Thresholding the results
Results from the corresponding model can be thresholded to a given uncorrected or corrected statistical significance level, obtaining peak coordinates, clusters breakdowns and NIfTI images. This will also open MRIcron brain viewer to display the results (if MRIcron is enabled; see Settings section for help on setting up MRIcron integration).
Please find citation information for the atlas by Catani, Thiebaut de Schotten et al below.
One-tailed vs two-tailed
As in most neuroimaging software, this dialog conducts a pair of one-tailed tests. To avoid doubling the false positive rate, please halve the statistical significance level (e.g., to 0.025).
To threshold a map
Press the button [Threshold]
Select [Threshold] in the Statistics menu, to open the following dialog:
Command-line and batch usage
threshold p_map_path,z_map_path,value,minimum number of voxels
Note: p-map and z-map paths should NOT include the extension .nii.gz
(effect-sizes and variances): Radua J, Mataix-Cols D, Phillips ML, El-Hage W, Kronhaus DM, Cardoner N and Surguladze S. A new meta-analytic method for neuroimaging studies that combines reported peak coordinates and statistical parametric maps. Eur Psychiatry 2012; 27:605–611. .
(white matter atlas 1): Thiebaut de Schotten M, Dell'Acqua F, Forkel SJ, Simmons A, Vergani F, Murphy DG and Catani M. A lateralized brain network for visuospatial attention. Nat Neurosci 2011; 14:1245-1246. .
(white matter atlas 2): Thiebaut de Schotten M, Ffytche DH, Bizzi A, Dell'Acqua F, Allin M, Walshe M, Murray R, Williams SC, Murphy DG and Catani M. Atlasing location, asymmetry and inter-subject variability of white matter tracts in the human brain with MR diffusion tractography. Neuroimage 2011; 54:49-59. .
(white matter atlas 3): Rojkova K, Volle E, Urbanski M, Humbert F, Dell'Acqua F and Thiebaut de Schotten M. Atlasing the frontal lobe connections and their variability due to age and education: a spherical deconvolution tractography study. Brain Struct Funct 2015; in Press. .