Fig 7. The effect of dot size in half-matched RDSs.

a) Psychophysical performance for four human observers in response to dynamic half-matched RDSs of three different dot sizes presented at 21.25 Hz dot pattern refresh rate. Each data point shows a minimum of 40 trials for each dot size per subject. b) Average performance for the four human observers and for the model shown in Fig 5. Error bars show binomial 95% confidence intervals. The noise-level was fitted to match the human observers. Dot density for all stimuli was 24%.