Figure 2

The SHR were more active than WKY in the open field. Results are displayed as the median and interquartile range. a. Total distance covered during the 5 minutes of the open field test grouped by strain and stress. * SHR covered a significantly greater distance than WKY rats (p < 0.0001). b. Number of entries into the inner zone of the open field during the 5 minutes of testing grouped by strain and stress. * SHR entered the inner zone more frequently than WKY rats (p < 0.0001). c. Time spent in the inner zone of the open field during the 5 minutes of testing. * SHR spent significantly more time in the inner zone than WKY (p < 0.001).