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. 2011 Sep 9;6(9):e24523. doi: 10.1371/journal.pone.0024523

Figure 7. Fits to time-resolved DOG functions for example on-center Y and X neurons in Figs. 1 and 2 .

Figure 7

A, Experimental Y-neuron response data. B, Best fit to time-resolved DOG model in Eq. (4). C, Deviation between experimental results (A) and model results in (B). Error ε (cf. Eq. 1) is 0.016. D, Fitted values of weight parameters A(ti) and B(ti) for Y neuron. E, Fitted values of width parameters a(ti) and b(ti) for Y neuron. F, Time-resolved error εt (cf. Eq. 2) for Y neuron. G–L, Same as (A)–(F) for the X-neuron response data. The deviation between experimental results (G) and model results (H) corresponds to an error ε = 0.012. Note that the almost vertical lines in panels (D) and (J) signal a rapid growth of the fitted value of the weight parameter B to values beyond the maximum values of the y-axes. The almost vertical lines in panels (E) and (K) correspondingly signal a rapid growth of the width parameter b.