Fig. 6. Vomeronasal (VN) neurons elicit both inward and outward currents in response to chemical stimulation. (A) Plot of the distribution of the peak current magnitude in response to exposure to five natural stimuli. The most frequent response magnitudes were between –15 and +15 pA. Data were fitted with a bin width of 10 pA and with a normal distribution (solid line) to approximate the mean frequency. Zero current responses are not plotted. (B) Plot of the percentage of VN neurons that respond to the stimuli with inward and outward currents. Urine was tested at a dilution of 1:10, musk at a dilution of 1:300 and catfish extract at a dilution of 1:100. The number of neurons tested is given in parentheses. Cat, catfish extract; M Musk, male musk; F Musk, female musk; M Urine, male urine; F Urine, female urine.
