Figure 2
From: Decrease in fMRI brain activation during working memory performed after sleeping under 10 lux light

Decreases in fMRI activities in the IFG after exposure to 10-lux light.
(a) Significant decreases in fMRI activities in the right IFG after exposure to 10-lux light for one night. Before exposure > after exposure. PFWE-corr = 0.014. Statistical threshold of p < 0.05 (corrected) at the cluster level. (b) fMRI activities in the IFG after exposure to 10-lux light decreased more when performing a more difficult task (i.e., 2-back task compared to 1- or 0-back task). Before exposure >after exposure, 2-back task >1- or 0-back task. PFWE-corr = 0.033 in right IFG. PFWE-corr = 0.010 in left IFG. Statistical threshold of p < 0.05 (corrected) at the cluster level. Abbreviations: fMRI, functional magnetic resonance imaging; IFG, inferior frontal gyrus; FWE-corr, family-wise error corrected for multiple comparisons.