McDougall, S. ., Neisewander, J. ., Bardo, M. ., & Zolman, J. . Ontogenetic changes in 3H -spiroperidol binding sites in posthatch chick brain. Life Sciences, 44(20), 1515-20. https://doi.org/10.1016/0024-3205(89)90331-7 (Original work published 1989)

Neisewander, J. ., Nonneman, A. ., McDougall, S. ., & Bardo, M. . (1969). Up-regulation of opiate receptors following chronic naloxone treatment in aged rats. Neurobiology of Aging, 10(1), 55-8. https://doi.org/10.1016/s0197-4580(89)80011-9 (Original work published 1969)

Neisewander, J. ., Rowlett, J. ., Nonneman, A. ., & Bardo, M. . Up-regulation of opiate receptors following chronic naltrexone treatment in mature and aged male and female rats. Progress in Clinical and Biological Research, 292, 471-6. (Original work published 1989)

Bardo, M. ., Neisewander, J. ., & Ennis, R. . (1988). Chronic treatment with naltrexone enhances morphine-stimulated dopamine neurotransmission: neurochemical and behavioral evidence. Neuropharmacology, 27(11), 1103-9. https://doi.org/10.1016/0028-3908(88)90004-4

Bardo, M. ., & Neisewander, J. . (1987). Chronic naltrexone supersensitizes the reinforcing and locomotor-activating effects of morphine. Pharmacology, Biochemistry, and Behavior, 28(2), 267-73. https://doi.org/10.1016/0091-3057(87)90224-3

Neisewander, J. ., & Bardo, M. . Expression of morphine-conditioned hyperactivity is attenuated by naloxone and pimozide. Psychopharmacology, 93(3), 314-9. https://doi.org/10.1007/BF00187249 (Original work published 1987)

Bardo, M. ., & Neisewander, J. . (1986). Single-trial conditioned place preference using intravenous morphine. Pharmacology, Biochemistry, and Behavior, 25(5), 1101-5. https://doi.org/10.1016/0091-3057(86)90092-4

Bardo, M. ., Neisewander, J. ., & Miller, J. . Repeated testing attenuates conditioned place preference with cocaine. Psychopharmacology, 89(2), 239-43. https://doi.org/10.1007/BF00310636 (Original work published 1986)

Bardo, M. ., Schmidt, R. ., & Bhatnagar, R. . (1985). Effects of morphine on sprouting of locus coeruleus fibers in the neonatal rat. Brain Research, 354(2), 161-8. https://doi.org/10.1016/0165-3806(85)90167-1

Bardo, M. ., Miller, J. ., & Neisewander, J. . (1984). Conditioned place preference with morphine: the effect of extinction training on the reinforcing CR. Pharmacology, Biochemistry, and Behavior, 21(4), 545-9. https://doi.org/10.1016/s0091-3057(84)80037-4