A, D, and G: temporal analysis of the same units as those in Fig. 1, A–C: heat plot of the response to different spatial frequencies as a function of different delay times τ. Warmer colors indicate response enhancement; colder colors indicate response suppression. B, E, and H: preferred spatial frequency fpk as a function of the time delay τ, between τdev and τdecay. cpd, Cycles/degree. C, F, and I: quality factor Q in function of time delay τ, between τdev and τdecay.