Figure 4.

Temporal Tuning of UV Cones

(A) Mean ± 1 SD responses to a 200-ms flash of light (6 × 10⁵ photon/s/μm²) from darkness (0 photon/s/μm²).

(B) Box and violin plots of recovery time constants from (G). n = 29, 29, 23, and 13 for SZ, D, N, and V, respectively.

(C and D) As in (A) and (B), but for an equivalent contrast dark flash. n = 27, 24, 19, and 13 for SZ, D, N, and V, respectively. ANOVA test ^∗p < 0.02, ^∗∗∗p < 0.0001 (H and J). n.s., not significant.

(E) Mean ± 1 SD (shadings) calcium responses to a 5-ms light flash from darkness before (shades of purple) and after HC blockage using CNQX (green).

(F) Quantification of recovery time constant after a 5-ms UV flash at 10⁴ photons/cone. n = 51, 29, 46, and 17 for SZ, D, N and V, respectively for the control condition and n = 51, 32, 46, and 19 after HC block. ANOVA test ^∗∗p < 0.01, ^∗∗∗p < 0.001. n.s., not significant.