Figure 4.

Effects of the duration of brief daily periods of unrestricted vision on the spatial frequency tuning of V2 neurons. (A) Representative spatial frequency tuning functions for the affected eye from a monkey reared with continuous form deprivation (0 hours of unrestricted vision) (left), a deprived monkey with 2 hours of unrestricted vision (middle), and a normal monkey (right). (B) Interocular comparisons of the optimal spatial frequency of binocular units (ODI = 0.2–0.8) (open circles). Filled symbols: mean values (±SE). Open squares: on x- and y-axes indicate comparable data for monocular units (ODI = 0.0–0.2 or 0.8–1.0). Filled symbols along x- and y-axes show the mean values (±SE) for monocular units and filled symbols near the unity line indicate the mean values (±SE) for binocular units. If error bars are not visible, the standard errors are smaller than the size (length and width) of the symbols.