Fig. 11.

Comparison of medial and lateral VTA neuron properties. A: putative DA neurons in the medial VTA showed moderately higher basal firing rates compared with those in the lateral VTA. B: lateral VTA DA neurons showed a higher CV in their ISI than medial VTA DA neurons. C: high-firing/short-duration neurons showed the opposite effects. Lateral VTA high-firing neurons fired faster. D: lateral high-firing neurons had a lower CV than medial VTA high-firing neurons. All values are means ± SE. *P < 0.05 (2-tailed t-test).