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. 2017 May 1;8(6):2822–2834. doi: 10.1364/BOE.8.002822

Table 2.

Results of the Friedman test to analyze the differences between groups of the same color but various filter settings (tests are performed across the filter settings). The values are given for all tested ROIs separately (full forehead, left, center and right region).

ROI
Full Left Center Right
Blue *** ** *** ***
Green *** n.s. *** ***
Red * n.s. n.s. *

n.s. p > 0.05, * p ≤ 0.05, ** p ≤ 0.01, *** p ≤ 0.001