Reactive Searching and Infotaxis in Odor Source Localization
Figure 6
Contrasting juxtaposition of our trajectories to behavioral data.
(A) Two representative reactive (za) search trajectories: the pink path is characteristic for a maximum stimulation dose, the red path is a typical result of medium or low stimulation. The dots on the trajectories indicate pheromone detections. (B) Two representative infotaxis trajectories: the cyan path is characteristic for using the maximum or medium dose, the green path is a typical result of minimal stimulation. (C) Three exemplary behavioral search trajectories, provided by the Kanzaki-Takahashi Laboratory (University of Tokyo) [36]. A silkmoth walking in a wind channel started at (0,0.6). The source was at (0,0) but was considered to be reached when within 5 cm of the latter. (D) Track-angle histograms (bin size = 10°) of the trajectories shown in (C). (E) Tabular comparison of the resulting trajectory lengths of strategic versus behavioral searching.