Table 1.

Significance thresholds of xMCC r values as determined by random permutation tests, at an alpha level of 0.01. N specifies the number of predictors

	N = 1	N = 2	N = 3	N = 4	N = 5	N = 6	N = 7
4S	0.0532	0.0628	0.07	0.0755	0.08	0.0845	0.0885
Occipital	0.053	0.0623	0.0697	0.0752	0.0803	0.0849	0.089