Research Article

Chewing Prevents Stress-Induced Hippocampal LTD Formation and Anxiety-Related Behaviors: A Possible Role of the Dopaminergic System

Figure 3

Effects of acute stress and chewing on concentration changes of norepinephrine (a), dopamine (b), and serotonin (c) in the ventral hippocampus. The thick horizontal bar indicates exposure to restraint stress. Asterisks indicate statistically significant differences (). (d) A representative brain slice showing the tract of microdialysis probe. Postmortem brain slices of all tested rats were Nissl stained to confirm the microdialysis tract in the ventral hippocampus and were analyzed using a light microscope. Scale bar equals 1 mm.