Figure 9.

Summary of the anatomical segregation of function in the bee lobula. A–D, In these schematics in a frontal (A, C) and horizontal (B, D) view, the different layout of GABA (white bands) are combined with the layout of the wide-field layer 1–4 (red), layer 5–6 neurons (blue), and columnar layer 1–6 neurons (green). These neurons predominantly exit the lobula via different tracts, which include the aott, psot, piot, and lot. E–G, The results are summarized in these diagrams. E, The layer 1–4 neuron pathway would likely be activated during the presentation of achromatic motion cues (black and white moving grating). Their responses would be reliable, less precise, and would have an on–off response to flicker. F, The layer 5–6 neuron pathway would probably be stimulated during color (blue, green, or violet light) and chromatic motion cues, and would produce highly precise responses and have phasic responses to flicker. G, The layer 1–6 neurons had variable responses, but were sensitive to color and/or motion stimuli and could have precise and/or reliable responses overall. Abbreviations are as defined in Figure 2 and Results.