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. 2016 Aug 2;10:62. doi: 10.3389/fnsys.2016.00062

FIGURE 4.

FIGURE 4

Brain activations modulated by stimulated by task difficulty. Shown here are regions showing increased activation in the blind as function of task difficulty. The Easy discrimination elicited more widespread bilateral activation in the parietal and occipital areas, whereas the Threshold (and more difficult) comparison yielded more activity primarily within the right occipital superior gyrus.