Dimensionality and Dynamics in the Behavior of C. elegans
(A) The distribution of amplitudes ρ(a3), shown on a logarithmic scale. Units are such that , and for comparison we show the Gaussian distribution; note the longer tails in ρ(a3). (B) Images of worms with values of a3 in the negative tail (left), the middle (center) and positive tail (right). Large negative and positive amplitudes of a3 correspond to bends in the dorsal and ventral direction, respectively. (C) A two minute trajectory of the center of mass sampled at 4 Hz. Periods where |a3|>1 are colored red, illustrating the association between turning and large displacements along this mode.