Fig 2 - Eye-gaze information input based on pupillary response to visual stimulus with luminance modulation
Experiment 1: (a) luminance-modulated visual stimuli and (b) change in pupil size [pix] as a function of time. The initial second of data is excluded from the analysis. See text for details. https://doi.org/10.1371/journal.pone.0226991.g002