d′ values of magnocellular neurons (open symbols) and parvocellular neurons (filled symbols) as a function of temporal frequency.

Points are means and shaded bands are ±1 standard error. The monkeys' psychophysical d′ for all stimuli is approximately 1.27 (dashed line, see Methods). Stimulus contrasts are shown for a location 5° out along the horizontal meridian (gray curve and right ordinate). Data are available at https://github.com/horwitzlab/LGN-temporal-contrast-sensitivity/blob/master/DataByFigure.xlsx.