1. Ritz, M.C., Lamb, R.J., Goldberg, S.R. & Kuhar, M.J. Cocaine receptors on dopamine transporters are related to self-administration of cocaine. Science 237, 1219–1223 (1987).
2. Wise, R.A. & Bozarth, M.A. A psychomotor stimulant theory of addiction. Psychol. Rev. 94, 469–492 (1987).
3. Volkow, N.D. et al. Reinforcing effects of psychostimulants in humans are associated with increases in brain dopamine and occupancy of D(2) receptors. J. Pharmacol. Exp. Ther. 291, 409–415 (1999).
4. Sulzer, D., Maidment, N.T. & Rayport, S. Amphetamine and other weak bases act to promote reverse transport of dopamine in ventral midbrain neurons. J. Neurochem. 60, 527–535 (1993).
5. Hoffman, A.F., Lupica, C.R. & Gerhardt, G.A. Dopamine transporter activity in the substantia nigra and striatum assessed by high-speed chronoamperometric recordings in brain slices. J. Pharmacol. Exp. Ther. 287, 487–496 (1998).