Emergent spatial goals in an integrative model of the insect central complex
Fig 9
Navigating when a target disappears.
(A-C) Simulation paradigm diagram. (A) The first phase corresponds to the previous simulation using visual-driven processing. (B) However, when the agent reach 50l.u. from the target, it disappears. (C) This agent is then left navigating without any new visual information modifying the FBt − PFN/hΔ guidance system in the CX. (D-G) Model without PI. (D) Example of a simulation path (black line). The location of the first sight of the target is indicated by the cyan dot and the last sight by a red dot. The target location is shown as a green plain circle and the origin location by a blue star. (E) Success rate (%) to reach the target location. (F) Success and failed attempts as a function of the βPFN learning parameter value. Success rate are calculated for every 0.25 section. (G) Mean distance to the target (blue dots) and the last sight (red dots) locations after the last sight event occurrence as a function of the βPFN learning parameter value. The lines show a 2nd degree polynomial fit for both location distances (blue for the target, red for the last sight). (H-K) Model with PI. Respectively identical to (D-G). Clipart(s) in the figure have been modified from https://openclipart.org/.