Masana, M.I., Sumaya, I.C., Andre, E., Becker-Andre, M., & Dubocovich, M.L. (2007).  Behavioral characterization and modulation of circadian rhythms by light and melatonin in C3H/HeN mice homozygous for the RORb knockout.  American Journal of Physiology, 292(6), R2357-67.

Sumaya, I.C., & Dubocovich, M.L. (2006). Fluphenazine-induced hypokinesia in C3H/HeN mice is attenuated by melatonin (MLT through activation of MT1 MLT receptors. Neuropsychopharmacology, 31, S191.

Dubocovich, M.L., Sumaya, I.C., Zelivyanskaya, M.L., Soto, C., & Stepien, I. (2006). Antidepressant-like effect in the swimming test and increased cell proliferation/survival in hippocampus of adult C3H/HeN mice chronically treated with the melatonin (MLT) receptor ligand luzindole, Neuropsychopharmacology, 31, S172.

Sumaya, I.C., Masana, M.I., & Dubocovich, M.L. (2005). The Antidepressant-like effect of the melatonin receptor antagonist luzindole in mice during forced swimming requires the expression of MT2 but not MT1 melatonin receptors. Journal of Pineal Research, 39(2), 170-177. 

Borlongan, C.V., Sumaya, I.C., & Moss, D.E. (2005). Methanesulfonyl fluoride, an acetylcholinesterase inhibitor, attenuates simple learning and memory deficits in ischemic rats. Brain Research, 1038(1), 50-8.  

Dubocovich. M.L., Hudson, R.L., Sumaya, I.C., Masana, M.I., & Manna, E. (2005). The effect of MT1 melatonin receptor deletion on melatonin-mediated phase shift or circadian rhythms in the C57BL/6 mouse. Journal of Pineal Research, 39(2), 113-120. 

Sumaya, I.C., Byers, D.M., Irwin, L.N., Del Val., S., & Moss, D.E. (2004). Circadian-dependent effect of melatonin on dopaminergic D2 antagonist-induced hypokinesia and agonist-induced stereotypies in rats. Pharmacology, Biochemistry and  Behavior, 78, 727-733.

Borlongan, C.V., Sumaya, I.C., Moss, D.E, Kumazaki, M., Sakurai, T., Hida, H.,  & Nishino, H. (2003). Melatonin-secreting pineal gland: A novel tissue source for neural transplantation therapy in stroke. Cell Transplantation, 12, 225-234.

Borlongan, C.V., Sumaya, I.C., Moss, D.E, Kumazaki, M., Sakurai, T., Hida, H., & Nishino, H. (2002). Intracerebral transplantation of melatonin-secreting pineal gland protects against stroke-induced deficits in rats. Experimental Neurology, 175, 415-450.                 

Sumaya, I.C., Rienzi, B.M., Deegan II, J.F., & Moss, D.E. (2001). Bright light treatment decreases depression in institutionalized older adults: A placebo controlled cross-over study. Journal of Gerontology: Medical Sciences, 56A (6), M356-M360.

Hagan, M.M., Castaneda, E., Sumaya, I. C., Flemming, S.M., Galloway, J., & Moss, D.E. (1998). The effect of hypothalamic peptide YY on hippocampal acetylcholine release in vivo: Implications for limbic function in binge-eating behavior. Brain Research, 805, 20-28.   

Sumaya, I.C. (1995). Caregiver\resident relationships: Surrogate bonding and surrogate grieving in a skilled nursing facility. Journal of Advanced Nursing, 21, 447-451.