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. Author manuscript; available in PMC: 2010 Mar 15.
Published in final edited form as: J Neurosci Methods. 2008 Nov 27;177(2):440–447. doi: 10.1016/j.jneumeth.2008.11.013

Figure 6. Mitral cell responses to VSN stimulation with male and female mouse urine mixtures.

Figure 6

(A) Peristimulus time histograms for a cell that was suppressed by stimulating the VNO for 5s (solid black bars) with a mix of preferred (1:200 male urine, blue trace) and non-preferred (1:200 female urine, red trace) stimuli. The 1:200 mixture (purple trace) induced firing rates below those seen for the preferred stimulus alone, indicating intact laterally-connected inhibition within the ex vivo circuit. 6 of 9 cells exposed to these stimuli had suppression indices below zero. (B) An example mitral cell that did not undergo mixture suppression. The mixed stimulus (purple trace) elicited higher firing rates than the preferred stimulus alone (female urine, red trace). (C) Scatter plot of the 9 cells in this study. Suppression index, ranging from -1 (most suppressed) to +1 (enhanced), is plotted against the selectivity index (-1 = male-selective, +1 = female-selective).