Supplementary Figure 7: Similarity of SUA responses for nearby recording sites

The ordinate shows the mean Pearson correlation coefficients between responses to all 77 images at spatially separate sites as a function of the separation distance within the same penetration for single unit activity (the format is the same as in Figure 7). The distance between each pair of sites was determined by the microdrive readings along the penetration. As an estimate of the maximum correlation that could be expected given the variability in the data, the dashed horizontal line shows the mean correlation obtained from comparing the odd and even repetitions of the SUA vs. SUA at the same site (after correction for the number of repetitions. The dotted line shows the correlation coefficient between sites in different hemispheres.