Neural Hierarchy of Color Categorization: From Prototype Encoding to Boundary Encoding.

ROI Analyses The two (distance: far, near) × two (category: green, blue) repeated-measure ANOVA of the percent signal change for each ROI showed a significant effect of distance in the left V4 [ F (1, 16) = 6.71, p = 0.020, partial η 2 0.296] and marginally significant in the right V4 [ F (1, 16) = 3.58, p = 0.077, partial η 2 = 0.183], as the near colors produced larger responses than the far colors ( Figure 3C ).

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