Before revision:  We investigate whether a robust bifurcation structure can describe such transitions, and take the locust, which appears to have one of the simpler early olfactory pathway architectures, as a representative example. Using an integrate-and-fire (I \& F) model , we reproduce relevant results of both experimental measurements and detailed models of early olfaction dynamics and odor discrimination.
After revision:  We hypothesize that the time scales of fast excitation and fast and slow inhibition present in these networks may be the essential element underlying this similar behavior, and design an idealized, conductance-based integrate-and-fire (I \& F) model , we reproduce relevant results of both experimental measurements and detailed models of early olfaction dynamics and odor discrimination.