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Lambert, K.G., Nelson, R.J., Jovanovic, T., & Cerda, M. 2015. Brains in the city: Neurobiological effects of urbanization. Neuroscience & Biobehavioral Reviews (In press).

Aubrecht, T.A., Jenkins, R., Magalang, U. & Nelson, R.J. 2015. Influence of gonadal hormones on the behavioral effects of intermittent hypoxia in mice. American Journal of Physiology (In press).

Borniger, J.C., Gaudier-Diaz, M.M., Zhang, N., Nelson, R.J. & DeVries, A.C. 2015.Cytotoxic chemotherapy increases sleep and sleep fragmentation. Behavior, Brain and Immunity (In press).

Weil, Z.M., Borniger, J.C., Cisse, Y.M., Abi Salloum, B.A., & Nelson, R.J. 2015. Photoperiodic and neuroendocrine modulation of immune defenses. Frontiers in Neuroendocrinology, 37:108-118.

Ikeno, T. & Nelson, R.J. 2015. Acute melatonin treatment alters dendritic morphology and circadian clock gene expression in the hippocampus of Siberian hamsters. Hippocampus, 25: 142-148.



Borniger J.C., Maurya, S.K., Periasamy, M. & Nelson, R.J., 2014​. Acute dim light at night increases body mass, alters metabolism, and shifts core body temperature circadian rhythms. Chronobiology International, online: 1-9.

Fonken L.K., Melendez-Fernandez O.H., Weil Z.M., & Nelson, R.J. 2014. Exercise attenuates the metabolic effects of dim light at night. Physiology & Behavior, 124:33-36.

Morris, J.S., Weil, Z.M. & Nelson, R.J. 2014. Early sexual experience alters voluntary alcohol intake in adulthood. Neuroscience Letters, 563:129-133.

Nelson, A.C., Cauceglia, A.W., Merkley, S.D., Youngson, N.A., Oler, A.J., Nelson, R.J., Cairns, B.R., Whitelaw, E., & Potts, W.K. 2014​. Reintroducing laboratory mice to sociality induces adaptive transgenerational regulation of MUP expression. Proceedings of the National Academy of Sciences, 110:19848-19853.

Ikeno, T., Weil, Z.M. & Nelson, R.J. 2014. Dim light at night disrupts the short-day response in Siberian hamsters. Comparative and General Endocrinology, 197:56-64.

Aubrecht, T.A., Weil, Z.M. & Nelson, R.J. 2014. Melatonin treatment during early life interacts with stress to alter neuronal morphology and provoke depressive-like responses. Behavioural Brain Research, 15: 263:90-97.

Bedrosian, T.A & Nelson, R.J. 2014. Nitric oxide and serotonin in aggression. Current Trends in Behavioral Neuroscience (In press).

Fonken, L.K. & Nelson, R.J. 2014. Effects of light at night on circadian clocks and metabolism. Endocrine Reviews (In press).

Ikeno, T., Weil, Z.M. & Nelson, R.J. 2014​. Timing of light pulses and photoperiod on the diurnal rhythm of hippocampal neuronal morphology of Siberian hamsters. Neuroscience, 270:69-75.

Walton, J.C., Aubrecht, T.G., Weil, Z.M., Leuner, B., & Nelson, R.J. 2014. Photoperiodic regulation of hippocampal neurogenesis in adult male white-footed mice (Peromyscus leucopus). European Journal of Neuroscience (In press).

Borniger, J.C., Ding, N., Tweedle, M.F., Knopp, M.V., Maurya, S.K., Periasamy, M., Weil, Z.M., & Nelson, R.J. 2014. Short photoperiods increase peripheral metabolism at thermoneutrality in Siberian hamsters (Phodopus sungorus). Chronobiology International (In press).

Aubrecht, T.A., Weil, Z.M. & Nelson, R.J. 2014. Dim light at night interferes with the development of the short-day phenotype and impairs cell-mediated immunity in Siberian hamsters (Phodopus sungorus). Journal of Experimental Zoology A (In press).

Borniger, J.C., McHenry, Z.D., Abi Salloum, B.A., and Nelson, R.J. 2014​​. Exposure to dim light at night during early development increases adult anxiety-like responses. Physiology & Behavior, 133: 99-106.


Ikeno T., Weil Z.M., & Nelson R.J. 2013. Photoperiod affects the diurnal rhythm of hippocampal neuronal morphology of Siberian hamsters Chronobiology International, 30: 1089-1100.

Weil, Z.M. & Nelson, R.J. 2013. Seasonal rhythms in behavior. In Pfaff, D.W. Textbook of Neuroscience in the 21st Century: Basic and Clinical. Springer: New York. pp. 1795-1810.

Morris, J.S., Weil, Z.M. & Nelson, R.J. 2013. Sexual experience and testosterone during adolescence alters adult neuronal morphology and behavior. Hormones and Behavior, 64: 454-460

Bedrosian, T.A., Weil, Z.M. & Nelson, R.J. 2013. TNFα is implicated in a reversible depression-like phenotype provoked by chronic dim light at night. Molecular Psychiatry, 18: 930–936.

Ashley, N.T., Walton, J.C., Haim, A., Zhang, N., Prince, L.A., Fruchey, A.M., Lieberman, R.A., Weil, Z.M., Magalang, U.J. & Nelson, R.J. 2013. Sleep deprivation reduces peripheral and hypothalamic IL-1 gene expression independent of photoperiod and circulating cortisol in endotoxin-challenged Siberian hamsters (Phodopus sungorus). Journal of Experimental Biology, 216: 2581-2586.

Bedrosian, T.A., Vaughn, C.A., Galan, A., Daye, Ghassan, Weil, Z.M. & Nelson, R.J. 2013. Night-time light exposure impairs mood in a wavelength-dependent manner. Journal of Neuroscience, 33: 13801-13087.

Bedrosian, T.A., Galan A., Vaughn C.A., Weil Z.M., & Nelson, R.J., 2013. Nocturnal light alters diurnal patterns of cortisol and clock proteins in female hamsters. Journal of Neuroendocrinology, 25:590 –606.

Bedrosian, T.A., Herring K.L., Walton J.C., Fonken L.K., Weil Z.M. & Nelson, R.J. 2013. Possible feedback control of pineal melatonin secretion. Neuroscience Letters, 542: 123-125.

Bedrosian, T.A. & Nelson, R.J. 2013. Influence of the modern light environment on mood. Molecular Psychiatry, 18: 751-757.

Borniger, J.C., Weil, Z.M., Zhang, N. & Nelson, R.J. 2013. Dim light at night does not disrupt timing or quality of sleep in mice. Chronobiology International, 30: 1016-1023.

Bedrosian, T.A., Aubrecht, T.G., Kaugars, K.E., Weil, Z.M. & Nelson, R.J. 2013. Artificial light at night alters delayed-type hypersensitivity reaction in response to acute stress in Siberian hamsters. Brain, Behavior, and Immunity, 34: 39-42.

Bedrosian, T.A., Vaughn, C.A., Weil, Z.M. & Nelson, R.J. 2013. Behavioral of laboratory mice is altered by light pollution within the housing environment. Animal Welfare, 22: 483-487.

Walton, J.C., Chen, Z., Travers, J.B. & Nelson, R.J. 2013. Exogenous melatonin recapitulates the effects of short day lengths on hippocampal function in male white-footed mice, Peromyscus leucopus. Neuroscience, 248: 403-413.

Fonken, L.K. & Nelson, R.J. 2013. Dim light at night increases depressive-like responses in male C3H/HeNHsd mice. Behavioural Brain Research, 243: 74-78.

Fonken, L.K., Weil, Z.M. & Nelson, R.J. 2013. Mice exposed to dim light at night exaggerate inflammatory responses to lipopolysaccharide. Brain Behavior, and Immunity, 34: 159-163.

Walton, J.C., Balakrishnan, S., Weil, Z.M., Nelson, R.J., & Snyder, S.H. 2013. Neuronal nitric oxide synthase and NADPH oxidase interact to affect cognitive, affective, and social behaviors in mice. Behavioural Brain Research, 256: 320-327.


Fonken, L.F., Kitsmiller, E., Smale, L. & Nelson, R.J. 2012. Dim nighttime light impairs cognition and provokes depressive-like responses in a diurnal rodent. Journal of Biological Rhythms, 27: 319 - 327.

Ashley, N.T., Zhang, N., Weil, Z.M., Magalang, U.J. & Nelson, R.J. 2012. Photoperiod alters duration and intensity of non-REM sleep following immune challenge in Siberian hamsters (Phodopus sungorus). Chronobiology International, 29: 683-692.

Walton, J.C., Grier, A.J., Weil, Z.M. & Nelson, R.J. 2012. Photoperiod and stress regulation of corticosteroid receptor, brain derived neurotrophic factor, and glucose transporter GLUT3 mRNA in the hippocampus of Siberian hamsters (Phodopus sungorus). Neuroscience, 213:106-111.

Weil, Z.W. & Nelson, R.J. 2012. Neuroendocrine mechanisms of seasonal changes in immune function. In Ecoimmunology. Edited by G.E. Demas & R.J. Nelson. Oxford University Press, New York, pp. 297-325

Bedrosian, T.A., Fonken, L.K., Demas, G.E. & Nelson, R.J. 2012. Photoperiod-dependent effects of neuronal nitric oxide synthase inhibition on aggression in Siberian hamsters. Hormones and Behavior, 61:176-180.

Fonken, L.F., Haim, A. & Nelson, R.J. 2012. Dim light at night increases immune function in Nile grass rats, a diurnal rodent. Chronobiology International, 29(1):26-34.

Bedrosian, T.A. & Nelson, R.J. 2012. Neurobiology of human killing. In: Nonkilling Psychology. Edited by Joám Evans Pim. Springer Verlag, New York. pp. 23-42.

Bedrosian, T.A. & Nelson, R.J. 2012. Circadian dysfunction in Alzheimer Disease: chicken or egg? Alzheimer's Research & Therapy, 4:25.

Weil, Z.M. & Nelson, R.J. 2012. Seasonal rhythms of psychoneuroimmunology. In: Oxford Handbook of Psychoneuroimmunology. Edited by S. Segerstrom, Oxford University Press, New York, pp. 291-305.

Yoon, S.O., Park, D.J., Ryu, J.C., Ozer, H.G., Tep, C., Shin, Y. J., Lim, T.E, Pastorino, L., Kunwar, A.J., Walton, J.C., Nagahara, A.H., Lu, K.P., Nelson, R.J., Tuszynski, M.H. and Huang, K. 2012. JNK3 perpetuates metabolic stress induced by Abeta peptides. Neuron, 75:824-837.

Walton, J.C., Schilling, K., Nelson, R.J. & Oberdick, J. 2012. Sex-dependent behavioral functions of the Purkinje cell-specific Gαi/o binding protein Pcp2(L7). Cerebellum, 11:982-1004.

Walton, J.C., Haim, A., Spieldenner, J.M. & Nelson, R.J. 2012. Photoperiod alters fear responses and basolateral amygdala neuronal spine density in white-footed mice (Peromyscus leucopus). Behavioural Brain Research, 233L345-350.

Walton, J.C., Pyter, L.M., Weil, Z.M. & Nelson, R.J. 2012. Photoperiod mediated changes in olfactory bulb neurogenesis and olfactory behavior in male white-footed mice (Peromyscus leucopus). PLoS ONE, 7:e42743

Ashley, N.T., Weil, Z.M. & Nelson, R.J. 2012. Inflammation: Mechanisms, costs, and natural variation. Annual Review of Ecology, Evolution, and Systematics, 43:385-406.

Bedrosian, T.A., Weil, Z.M. & Nelson, R.J. 2012. Citalopram improves depressive behaviors under light at night. Behavioral Neuroscience, 126:654-658.

Fonken, L.K., Bedrosian, T.A., Michaels, H.D., Weil, Z.M. & Nelson, R.J. 2012. Short photoperiods attenuate central responses to an inflammogen, Brain Behavior and Immunity. 26(4):617-22.


Bedrosian, T.A., Herring, K.L., Weil, Z.M. & Nelson, R.J. 2011. Altered temporal patterns of anxiety in aged and amyloid precursor protein (APP) transgenic mice. Proceedings of the National Academy of Sciences, 108:11686-11691.


Fenn, A., Fonken, L.K. & Nelson, R.J. 2011. Sustained melatonin treatment blocks body mass, pelage, reproductive and fever responses to short day lengths in female Siberian hamsters. Journal of Pineal Research, 51:180-186.

Fonken, L.K., Morris, J.S. & Nelson, R.J. 2011. Early life experiences affect adult delayed-type hypersensitivity in short and long photoperiods. Chronobiology International, 29(1): 26–34.

Fonken, L.K. & Nelson, R.J. 2011. Illuminating the deleterious effects of light at night. F1000 Medicine Reports, 3:18 (doi:10.3410/M3-18).

Fonken, L.K., Xu, X., Nelson, R.J., Chen, G., Rajagopalan, S. & Sun, Q. 2011​. Air pollution impairs cognition, provokes depressive-like behaviors and alters hippocampal cytokine expression and morphology. Molecular Psychiatry, 16:987-995.

Walton, J.C., Chen, Z., Weil, Z.M., Pyter, L.M., Travers, J.B. & Nelson, R.J. 2011. Photoperiod-mediated impairment of long-term potentiation and learning and memory in male white-footed mice. Neuroscience, 175:127-132.

Walton, J.C., Weil, Z.W. & Nelson, R.J. 2011. The influence of photoperiod on behavior, endocrine, and immune function. Frontiers in Neuroendocrinology, 32:302-319.

Weil, Z.M., Workman, J.L., Karelina, K. & Nelson, R.J. 2011. Short photoperiods alter cannabinoid receptor expression in hypothalamic nuclei related to energy balance. Neuroscience Letters, 491:99-103.

Wohleb, E.S., Hanke, M.L., Corona, A.M., Powell, N.D., Stiner, L., Bailey, M.T., Nelson, R.J, Godbout, J.P. and Sheridan, J.F. 2011. β-Adrenergic receptor antagonism prevents anxiety-like behavior and microglial reactivity induced by repeated social defeat. Journal of Neuroscience, 31:6277-6288.

Workman, J.L., Weber, M.D. & Nelson, R.J. 2011. Dietary arginine depletion reduces depressive-like responses in male, but not female mice. Behavioural Brain Research,223:81-87.

Workman, J.L., Fonken, L.K., Gusfa, J., Kassouf, K.M. & Nelson, R.J. 2011. Post-weaning environmental enrichment reduces negative affective responses and interacts with behavioral testing to alter nNOS expression. Pharmacology, Biochemistry & Behavior, 100:25-42.

Workman, J.L., Manny, N., Walton, J.C. & Nelson, R.J. 2011. Short day lengths alter stress and depressive-like responses, and hippocampal morphology in Siberian hamsters. Hormones and Behavior, 60:520-528.

Zubidat, A.E., Nelson, R.J. & Haim, A. 2011. Spectral and duration sensitivity to light-at-night in 'blind' and sighted rodent species. Journal of Experimental Biology, 214:3206-3217.

Bedrosian, T.A., Fonken, L.K., Walton, J.C., Haim, A. & Nelson, R.J. 2011. Dim light at night provokes depression-like behaviors and reduces CA1 dendritic spine density in female hamsters. Psychoneuroendocrinology. 36(7):1062-9.

Bedrosian, T.A., Fonken, L.K., Walton, J.C. & Nelson, R.J. 2011. Chronic exposure to dim light at night suppresses immune responses in Siberian hamsters. Biological Letters. 23;7(3):468-71.​​