Figure 8:

A, Stimulus conditions. An image of two sets of cages was separated into the right (contralateral) cage, right wall, left (ipsilateral) cage, left wall, and ceiling. All 31 combinations of five scene parts were shown. B, Top, average responses of four example cells to each combination of scene parts. Bottom, average responses in the presence (green bars) or absence (white bars) of a given scene parts. * = p < 0.05, ** = p < 0.01, *** = p < 0.001. Cell 1 responded only to the right cage. Cell 2 responded strongly to the right cage and weakly to the left cage when presented alone. Its response was inhibited by the presence of the left and right walls. Cell 3 responded to all stimulus parts except for the ceiling, but fired more strongly when the left cage was present. Cell 4 responded to the left wall. C, Distributions of the number of scene parts (left) and the number of pairwise interactions (right) that exerted a significant influence on cell firing for the cage scene for 25 cells (p < 0.05, Holm-corrected).