Fig. 2.

Effects of intragastric infusion of taste substances on the afferent discharge rate of a VGA filament. Each solution (30 mM IMP, 150 mM MSG, 277.5 mM glucose, 292.1 mM sucrose, and 154 mM NaCl) was introduced into the rat stomach, and the mean discharge rate above baseline at 30 min was plotted. Columns and horizontal bars represent mean ± SEM from 5 rats