Presence (+) or absence (-) of mild footshock
Figure 1 Acquisition of a five-trial inhibitory avoidance test in rat pups from three different strains: spontaneously hypertensive (SH), Wistar-Kyoto (WKY) and Wistar (WI). In the absence of the mild footshock (closed symbols), there is no difference in transfer times between the illuminated and darkened compartments. When the precision shock generator is active, however, pups from all three strains acquired the test after five trials. However, SHR pups exhibited a shallower learning curve compared with WKY or WI pups. This effect is readily apparent when data from trials 2-5 inclusive are summed and the mean taken. (Modified from Fox, G. B.; Pan, J. B.; Esbenshade, T. A.; Bennani, Y. L.; Black, L. A.; Faghih, R.; Hancock, A. A.; Decker, M. W. Behav. Brain Res. 2002, 131, 151-161, reprinted with permission of Elsevier.)
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Your heart pumps blood throughout your body using a network of tubing called arteries and capillaries which return the blood back to your heart via your veins. Blood pressure is the force of the blood pushing against the walls of your arteries as your heart beats.Learn more...