Sentence examples for extent thresholds from inspiring English sources

For spatial overlap analyses, we applied only voxel-level height thresholds and no spatial extent thresholds.

Significance of the voxel-wise gaze-position × polar angle interaction map was assessed using cluster-based Monte Carlo-derived Z-score and extent thresholds (McAvoy et al. 2001).

Smaller areas of correlation in the posterior and anterior temporal cortex and anterior frontal lobe did not survive the predefined statistical height and extent thresholds.

To reject false positives based on cluster extent thresholds [ 53] in the statistical parametric map, the cluster size was calculated using the REST AlphaSim toolbox [ 54] (www.restfmri.net; toolkit v1.8; 1000 Monte Carlo simulations were used).

This is because using a topological FDR procedure to control for type I error will result in different spatial extent thresholds for different VBM comparisons, potentially influencing the overlap analyses across group-difference maps.

Application of this correction limits false positive activations to a maximum of 5% of the total number of suprathreshold voxels; to ensure that no false positive clusters were reported, customized cluster extent thresholds corresponding to 5% of the total number of suprathreshold voxels were applied to each contrast of interest.

Fig. 2 Significance maps (uncorrected p < 0.01, with extent threshold k=400 voxels) superimposed on a T1-weighted brain MRI template image in the Montreal Neurological Institute (MNI) space.

To compare the HCs and the two MDD subgroups, two-sample t tests were conducted on the amyloid SUVR images, and SPM t-maps were examined with an uncorrected threshold of P < 0.01 and an extent threshold of 100 voxels.

These PPI maps were then thresholded at p<0.001, uncorrected, with an extent threshold of 10 voxels.

An extent threshold of 10 contiguous voxels was used in each of the contributing maps.

Across all analyses, the statistical threshold was set at p<0.001 uncorrected with an extent threshold of 8 contiguous voxels.