Comparison of the mean (± SEM) respiratory frequency in Hz between satiated NaCl (n = 10) and fasted insulin (n = 10) rats during food odor presentation.

Four 10 sec periods were considered: Pre-odor (−10 sec to 0 sec); Odor presentation (start: 0 sec to 10 sec, middle: 10 sec to 20 sec, end: 20 sec to 30 sec). Results are presented for each experimental condition: in the fasted state after 14 mU insulin ICV injection; in the satiated state after NaCl ICV injection. For the four periods, the means of respiratory frequency observed in two experimental conditions were not statistically different. (Two-way repeated measures ANOVA, p>0.05, ns).