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. Author manuscript; available in PMC: 2011 Dec 1.
Published in final edited form as: J Neurosci. 2011 Jun 1;31(22):7991–8000. doi: 10.1523/JNEUROSCI.6650-10.2011

Table 2.

Parameters of cone ERG recordings

unit control cones GCAPs−/− cones
Io photons μm−2 2180 ± 380 (13) 918 ± 110 (13)*
Rmax μV 13.5 ± 0.6 (13) 16.2 ± 1.0 (13)*
Time to peak ms 121 ± 4 (13) 211 ± 5 (13)**
Integration time ms 183 ± 28 (13) 423 ± 21 (13)**
SFD photons−1 μm2 3.7E-04 ± 6.5E-05 (13) 1.0E-03 ± 1.4E-04 (13)**
IS photons μm−2 s−1 12900 ± 3100 (7) 1100 ± 280 (7)*
IR photons μm−2 s−1 94300 ± 26100 (7) 3900 ± 770 (7)*
k, Hill coefficient 0.47 ± 0.04 (7) 0.70 ± 0.03 (7)**

Mean ± SEM (n). Student’s t-test determined significant differences

*

p < 0.05,

**

p < 0.005. IS is parameter of Weber-Fechner function in Fig. 6 C. IR and k are parameters obtained from the fit with eqn. (2) in Fig. 5C.