Figure 4.

Effects of partial cholinergic and glutamatergic blockade on wave dynamics. Percentage difference from control in cellular recruitment, wave spatial extent, and speed in the presence of cholinergic nicotinic (black bars) or glutamatergic (gray bars) antagonists (see Results for more details). Waves shrink during nicotinic blockade, whereas the main effect of glutamate blockade is to slow waves down. Asterisks indicate statistical significance between control and drug (^***p < 0.0001; ^**p < 0.0067; two-tailed t test). Error bars indicate SEM.