Figure 6
Behavioral analyses of the random-walk model elegans in an isotropic environment (a-d) and in an environment with NaCl gradients (e–h). (a) Three randomly selected tracks. (b) Distribution histogram of turning rates in a track (μ = 1.51 º/mm, σ = 30.52 º/mm, P = 0.38). The blue-dashed line is the probability density curve of the theoretical normal distribution. (c) Change in the average turning rates over time. (d) Relationship between turning rates at a time t and those after 6 s and 12 s. (e) Three randomly selected tracks in the presence of NaCl gradients. The black dot and red star represent the initial position and the NaCl peak, respectively. (f) Average turning bias vs. bearing. (g) Average turning bias vs. normal gradient. (h) Average turning bias vs. translational gradient.
