Figure 3

Rat open field movement: 3D representation. The same data from the previous figure are replotted as a three-dimensional graph(3D); z-axis in seconds (3600 sec). The x and y axis (1–4) correspond to the beams crossing the chamber. In A), an uninjured animal explores virtually the entire space. InB) a sham injured animal also explores much of the entire chamber. In C), an injured untreated animal does not move much and prefers to sit, stationary (vertical lines), thus exploring little. In D), an injured PEG-treated animal explores significantly more space than an injured untreated animal as revealed by these 3-D graphs.