Figure 7.
Example pair analysis for the cells shown in Figure 6. A, B, The non-DS and DS RFs. C, The CCH of the DS and non-DS cells. This CCH does not show a clear functional connection. The horizontal axis of the CCH has been expanded to show the slow (not functionally significant) correlations. For this analysis, we assume the non-DS cell is one of two inputs to the DS cell. The analysis shown here is designed to determine the RF of the best-fitting second input. D–F, The fit to the second, i.e., missing, component (F), which when added to the fit of the non-DS RF (D), provides the best fit (E; R2 = 0.88) to the DS member of the pair (B). G, The temporal profiles of the two input RFs. Solid and dashed lines represent the temporal profiles obtained from the components in D and F, respectively. Here the temporal phase difference between the two components is only 11°.