Figure 3 | Scientific Reports

Figure 3

From: A quantitative analysis of the contribution of melanopsin to brightness perception

Figure 3

Brightness perception and pupil diameter under visual stimuli. (A) Perceived brightness as a function of corneal luminance. The participants’ responses were taken 3 seconds after stimulus presentation, considering the time constant of melanopsin. The colored circles represent the experimental data, broken lines represent best-fitted power functions. (B) Pupil diameter plotted as a function of corneal luminance. (C) Pupil diameter plotted as a function of melanopic luminance. (D) Perceived brightness as a function of retinal illuminance. The colored circles represent the experimental data, broken lines represent best-fitted power functions. Error bars represent standard errors of the mean. Each color corresponds to each visual stimulus in Fig. 2.

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