. 2017 Jul 3;149(7):689–701. doi: 10.1085/jgp.201611744

Table 2. Effect of forskolin on the parameters of photoresponse and dark current noise.

Species	SPR_NR	SPR_Forsk	SPR_Forsk/ SPR_NR	SD_NR	SD_Forsk	SD_Forsk/SD_NR	S/N_NR	S/N_forsk	S/N_forsk/S/N_NR	ν_deNR	ν_deForsk	ν_deForsk/ν_deNR
	pA	pA		pA	pA					µm⁻³s⁻¹ × 10⁻⁶	µm⁻³s⁻¹ × 10⁻⁶
Frog	0.48 ± 0.09 (9)	0.87 ± 0.13 (9)	2.1 ± 0.30^a (9)	0.20 ± 0.01 (8)	0.21 ± 0.02 (8)	1.03 ± 0.06 (8)	2.30 ± 0.42 (8)	4.17 ± 0.57 (8)	2.08 ± 0.29^a (8)	22 ± 2.5 (5)	21 ± 3.4 (5)	0.97 ± 0.19 (5)
Toad	0.84 ± 0.13 (10)	1.69 ± 0.18 (10)	2.32 ± 0.35^a (10)	0.23 ± 0.02 (10)	0.28 ± 0.02 (10)	1.20 ± 0.05^a (10)	3.36 ± 0.53 (9)	6.32 ± 0.8 (9)	2.10 ± 0.34^a (9)	9.3 ± 1.8 (6)	9.2 ± 1.0 (6)	1.09 ± 0.13 (6)

SPR_NR and SPR_Forsk are amplitudes of SPRs in normal Ringer and in forskolin-containing solution, respectively. SD is standard deviation of continuous dark noise. S/N = SPR/SD stands for SNR. ν_deNR and ν_deForsk are rates of discrete dark events expressed as the number of events per second per µm³ of the rod outer segment volume.

Statistically significant effects of forskolin perfusion (P < 0.05).