Fig. 3.

Trajectory behaviors. A) Projections of 6-dimensional state space of one 60 s trajectory, parahippocampal lead, classification of nouns. Blue part contains 90% of states making the dense part. Red parts contain 10% of states temporarily escaping the dense part. B as A, but lead in frontal opercular cortex, memory test 10, C) projections of first 3 dimensions of 5 s trajectories from the parietal operculum during classifying nouns, 3 example epochs of stretching and contracting trajectory of states making a big, medium, and small volume of states. Red parts: Outside sections of trajectory exceeding Mahalanobis distances at the 90% percentile from the center of gravity (Methods). The trajectories evolve according to the color-scale starting in dark blue, continuing as blue green and ending as orange. D) Distributions (log normal, see Fig. S4) of times to return to the dense 90% of states for outside (red) trajectories (y-axes) when the volumes are big, medium, and small.