Emergent spatial goals in an integrative model of the insect central complex
Fig 8
Visually guided navigation including PI memory.
(A) Examples of trajectories from the nest to the target. (B) Left panel Example of a simulation reward input activity over time steps. Right panel Boxplot of the reward activity rate during the simulations (n = 200). (C) Success rate and time to reach the target. (D) Success to reach the target as a function of the learning parameter βPFN. Dots indicate individual simulation outcome. (E) Time to reach the target as a function of the learning parameter βPFN. (F) Conceptual comparison of the models with and without the hΔ/PI pathway for visual guidance. a. Without hΔ/PI pathway, the agent tries to correct its heading to be the same as the heading when the target was last sighted. b. With hΔ/PI pathway, the agent is steered towards the vector sum of the location where the target was last sighted, and the heading in which it was sighted, preventing overshoot. Clipart(s) in the figure have been modified from https://openclipart.org/.