Skip to main content
. Author manuscript; available in PMC: 2010 Aug 18.
Published in final edited form as: J Neurosci. 2009 May 20;29(20):6514–6525. doi: 10.1523/JNEUROSCI.0492-08.2009

Figure 3.

Figure 3

Parameter dependence of the development of OD columns under the learning rule of Eq. 6. Panels plot synaptic strengths in color as a function of cortical position, x, and simulated steps as in Fig. 2A. Some explicitly mentioned parameters are changed while the other parameters are based on the parameter set 1. The learning rule of Eq. 6 is sensitive to parameter choices: (A) with intracortical connections that are too weak, MA = 1.0, the two eyes do not equalize even after the maturation of inhibition; (B) also, with inhibition during the CP that is too weak, R = 1.0, the two eyes do not equalize; (C) with too little noise, σ2 = 3Hz/τ, almost no OD shift is observed during the simulated MD. (D) For balanced LTP and LTD, ρ= 1.0, no OD shift is observed after MD.