Fig. 7.
Spatial stochasticity maps were obtained by plotting λ and β parameters along the trajectory. Note that the inbound and the outbound trajectories are slightly different, leading to two seemingly displaced tracks in each plot. (A) The λ-maps show that θ-wave, γ-wave, and RE generally follow the mean trend near the food wells (with scattered wisps of high stochasticity) and deviate from the mean over the areas most distant from the food wells. The smaller maps in the gray boxes represent slow lapses: the overall layout of high-λ and low-λ fields is same as during the fast moves, which suggests spatiality of λ-stochasticity. (B) The behavior of βθ is opposite: the “uneventful,” distant run segments attract nearly periodic behavior, while the food wells attract time-clumping wave patterns. Note that, at the food wells, the waves exhibit highly improbable (high-λ), disordered (high-β) patterns.