The Smoothing Artifact of Spatially Constrained Canonical Correlation Analysis in Functional MRI

Table 2

Number of voxels affected by the smoothing artifact for different data analysis methods as a function of 𝑃> threshold in memory activation data for contrast “encoding” minus “control”.

Threshold	SV + GS	cCCA sum	cCCA avg	cCCA max
0.5	5	0	26	20
0.4	5	0	32	20
0.3	6	0	37	24
0.2	7	0	45	33
0.1	10	0	55	44