Figure 2From: Research on the relation of EEG signal chaos characteristics with high-level intelligence activity of human brainEEG attractors of five kinds of consciousness activities of subject 1. (a) Relaxation. (b) Mental arithmetic of multiplication. (c) Mental composition of a letter. (d) Visualizing a 3-dimensional object being revolved about an axis. (e) Visualizing numbers being written or erased on a blackboard.Back to article page