A unified mechanism for innate and learned visual landmark guidance in the insect central complex
Fig 10
Replication of unilateral mushroom body lesion experiments from [13].
A. Schematic of the model including both MB and innate visual attraction. Both elements are linearly summed to form a single reward signal, using individual weights (ωVin & ωMB) to modulate the influence of each component. Lesions are indicated by the black scissors and the results are reported in C and D (Left and right lesion respectively). B. Simulation with the combination of innate attraction (ωVin) and the mushroom bodies (ωMB) pathway. The learning procedure is similar as presented in Fig 9B. From top to bottom, final directions (blue arrows, nsim = 100) taken during the simulations [blue arc indicate the median (dot) 95% C.I. obtained by bootstrap (nrep = 10000)], examples of path obtained during simulations, and averaged right (red) and left (green) EPG-PFL3 synapse weights (shaded area: ±s.d.) obtained during 50 simulations. C. Unilateral lesion of the left mushroom body. Final direction vectors and example paths. D. Unilateral lesion of the right mushroom body. Final direction vectors and example paths.