Fig. 2

The neuronal responses of M. spicilegus and M. m. wagneri males to female odors. The patterns of accumulation of manganese ions in areas of the MOB of M. spicilegus and M. m. wagneri males fostered by con- or heterospecific females in response to the exposure of the urine odor of estrus female M. spicilegus and M. m. wagneri. The values of the correlation coefficient of the reaction patterns to the odor of M. spicilegus and M. m. wagneri for each group are indicated. For Figs. 2-5 pseudocoloring illustrates the significance of the increase (t > 0, where t is Student’s t criterion in pixel-to-pixel comparison of the group mean values of the signal in mouse OB) or decrease (t < 0) of the intensity of contrast accumulation in various MOB areas in response to the olfactory stimulus in comparison with the control group (saline exposure).