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Comparison of each light source, comparison of color temperature. (A) Analysis of brain region (B) c-Fos-positive cells number for each light source at two color temperature. All data on the figure expressed as mean ± SD. a: significant difference from 2800 K (p < 0.05), b: significant difference from 2800 K (p < 0.01), *: significant difference (p < 0.05), **: significant difference (p < 0.01).
