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

Figure 5. Principal components analysis (PCA) for example on-center Y and X neurons in Figs. 1 and 2 .

Figure 5

A, B, 1st and 2nd principal components, respectively, for the Y-neuron response data, i.e., contributions from terms with n = 1 and n = 2 in Eq. (3). C, Sum of contributions from two first principal components (and background activity) for Y neuron. D, Deviation between experimental results for Y neuron and PCA results in (C). Error ε (cf. Eq. 1) is 0.036. E–H, Same as (A)–(D) for the X-neuron response data. The deviation between experimental results and PCA results (G) corresponds to an error ε = 0.015.