Fig. 5: Cone output in response to probe flashes following luminance steps.
From: Suppression without inhibition: how retinal computation contributes to saccadic suppression
a, b Cone responses (baseline normalized iGluSnFR indicator fluorescence signal) to positive- and negative-contrast (+0.4 and −0.4 on Michelson scale) luminance steps alone (a) and to luminance steps followed by probe flashes at 17, 250, and 2000 ms (orange bars below the intensity bar shows timing of probe flashes) (b). Probe flashes were either bright or dark (+0.33 or −0.33 Michelson contrast, respectively; 100 ms long). In (b), responses to step-alone (blue) and individual step → flash pairs (dark gray) are overlaid. Dashed blue lines: timing of luminance step; orange circles: peak cone response to flashes; horizontal dashed line: cone level prior to the luminance step. c Flash-induced responses, isolated by subtracting luminance step-alone responses (blue) from individual composite luminance-step probe flash responses (dark gray) in (b). Lines connecting the response peaks highlight the time courses of suppression relative to baseline flash-induced (2000 ms) responses.
