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. Author manuscript; available in PMC: 2017 Feb 28.
Published in final edited form as: J Opt Soc Am A Opt Image Sci Vis. 2016 Mar;33(3):A104–A122. doi: 10.1364/JOSAA.33.00A104

Fig. 6.

Fig. 6

Action spectra of S (triangles), M (open circles), and L (closed circles) cones from individual infants at 4–12 weeks of age [82,83].