Figure 6.

Simulation of prior perceptual experiments. A, A peripheral target (blue) turned on 12 ms before a foveal target (magenta; Sweet, 1953). Both lights flashed for 15 ms. The subject perceived a simultaneous presentation of the lights, because of the greater prominence of the foveal target, which accelerated its rise to the threshold necessary to enter the perceptual map. Prominence map, M_p, is 1 everywhere but at the fovea, where it is 1.1, to reflect the fact that the subjects were instructed to look at the foveal fixation point before the flash. B, Two flashed lights (12 ms duration) appeared simultaneously (Alpern, 1954). The brighter light (magenta) had greater prominence, and was perceived earlier. The shift in times of perception is the consequence of the thresholds for the integrator and for conscious perception. (Layout same as in Fig. 5A.)