Figure 2From: Presynaptic action of neurotensin on dopamine release through inhibition of D2 receptor functionDependence of DA overflow on cell firing and extracellular calcium concentrations. Graph comparing the time course of DA overflow following train-pulse stimulations under control conditions (2.4 mM calcium) (n = 5) or in the presence of 1 μM TTX (n = 3), 0.5 mM calcium (n = 6) or 0 mM calcium (n = 2).Back to article page