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. Author manuscript; available in PMC: 2010 Jun 1.
Published in final edited form as: Optom Vis Sci. 2009 Jun;86(6):708–716. doi: 10.1097/OPX.0b013e3181a61673

Table 1.

Model’s parameter estimates for each of the data sets plotted in Figure 1 and Figure 3.

Spatial Frequency Participant go
(µS/cm2)		 ϕo
(deg)		 do
(%)		 m
(µS/cm2/%)		 η2 τ1(ms) τ32(ms)
0.75 c/deg 19-week-old 0.77 −237 −7.93 0.19 0.93 836.16 118.48
28-week-old 1.29 −254 −1.63 0.49 0.96 449.48 46.93
10-year-old 2.02 −153 0.78 4.51 0.92 122.37 5.46
26-year-old 0.89 −193 0.57 4.27 0.91 155.12 5.81
1.5 c/deg 21-week-old 1.29 −305 −3.85 0.51 0.97 443.98 45.08
3-year-old 0.48 −156 −7.38 1.17 0.95 484.19 21.06
26-year-old 3.33 −231 1.51 14.72 0.94 44.33 1.69

go: initial specific conductance in the system, ϕo initial phase, do threshold depth of modulation, m: shunting coefficient, η2 proportion of total variance in the data accounted for by the model fit, τ1 time constant at 1% depth of modulation and τ32 time constant at 32% depth of modulation