TABLE 2.
Parameters of M-cone responses from transretinal ERG recordings
The values are shown as means ± S.E. (n). SFD and IS are sensitivity in darkness and the background intensity, which gives half the flash sensitivity in Fig. 4D. IR and k are parameters obtained from the fit with Equation 2 in Fig. 4C.
| Control | Rec−/− | |
|---|---|---|
| Io (photons μm−2) | 2,300 ± 331 (16) | 4,000 ± 354 (7)a |
| Maximal response (μV) | 14.4 ± 0.7 (16) | 12.3 ± 1.0 (7) |
| Time to peak (ms) | 114 ± 4 (16) | 95 ± 2 (7)a |
| Integration time (ms) | 176 ± 21 (16) | 81 ± 9 (7)b |
| Recovery time constant (ms) | 122 ± 16 (16) | 61 ± 8 (7)b |
| SFD (photons μm−2 s−) | 3.9E-04 ± 6.7E-05 (16) | 1.9E-04 ± 1.9E-05 (7)a |
| Is (photons μm−2 s−) | 10,000 ± 27,000 (16) | 29,000 ± 5,600 (7)b |
| IR (photons μm−2 s−) | 130,000 ± 60,000 (9) | 370,000 ± 100,000 (7) |
| k (Hill coefficient) | 0.54 ± 0.03 (9) | 0.62 ± 0.04 (7) |
ap < 0.005.
b p < 0.05.