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. Author manuscript; available in PMC: 2013 Jun 6.
Published in final edited form as: Network. 2003 Feb;14(1):137–150.

Figure 2.

Figure 2

Dependence of SNR on model and stimulus parameters. (A) SNR (peak value) as a function of EPSP `signal' amplitude, A, with and without IKLT. Two cases are compared, with different strengths of random input that cause membrane fluctuations with two different standard deviations, σv. Note that SNR is more sensitive to the amplitude when membrane fluctuations are smaller. σv was calculated for the LIF model. The light dotted vertical line denotes control parameter values (as used in figure 1). (B) SNR as a function of membrane or synaptic current time constant. SNR for the LIF model without IKLT depends very weakly on both parameters. For the model with IKLT, increases in the synaptic current time constant lead to larger SNR.