Fig. 3.

Effects of a 1-min exposure to the urine odors of either infected or uninfected male mice on the nociceptive responses of OTWT and OTKO female mice (n = 10). Male odors were presented either by themselves (no female) or in association with the odor of an estrous female. Nociceptive responses recorded in the absence of male odors (no male, ♂) are also shown. Vertical lines denote a standard error of the mean.