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. 2015 Oct 19;5:15185. doi: 10.1038/srep15185

Figure 2. Pupillogram with all metrics and legend with abbreviations.

Figure 2

The schematic of the protocol from one recording with the following variables is shown: BL = Baseline pupil size (pupil diameter during the first 10 s of recording in darkness = 100%). Pupil size was expressed relative to baseline (actual pupil diameter/BL pupil diameter*100). MPS = Minimum Pupil size during 1 s and 30 s light stimuli (red and blue); PSPS = Post-Stimulus pupil size at 6 s after 1 s stimulus offset (red and blue); SPS = sustained pupil size; ERR = Exponential redilation rate after 30 s stimulus offset (%−s); ARS = Asymptotic re-dilation size after 30 s light blue and red light stimuli. The bold colored arrows at the top indicate the 1 s red and blue light stimuli as well as the 30 s red and blue light stimuli.