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

Figure 2

Effects of acute stress and chewing on poststress exploratory behavior in different durations after stress exposure. (a) The number of entries to the center region of the OFT. The number of animals used was = (0 min: 5, 6, 6), (30 min: 5, 8, 7), and (60 min: 9, 9, 8) after stress exposure in the (CT, ST, and SC) groups, respectively. (b) Number of entries to the open arm of the EPM. The number of animals used was = (0 min: 5, 6, 6), (30 min: 5, 8, 7), and (60 min: 9, 8, 8) after stress exposure in the (CT, ST, and SC) groups, respectively. Asterisks indicate statistically significant differences (, ).

(a) OFT

(b) EPM