1. Dovidio, J.F., Pearson, A.R. & Orr, P.T. (2008). Social psychology and neuroscience: strange bedfellows or a healthy marriage? Group Processes and Intergroup Relations, 11, 247-263. PDF
2. Lewis, M.C., Kerr, K.M., Orr, P.T., & Frick, K.M. (2008). Estradiol-induced enhancement of object memory consolidation is dependent on NMDA receptors and protein kinase A in the dorsal hippocampus of female C57BL/6 mice. Behavioral Neuroscience, 122, 716-721. PDF
3. Lewis, M.C., Orr, P.T., & Frick, K.M. (2008). Differential effects of acute progesterone administration on spatial and object memory in middle-aged and aged female C57BL/6 mice. Hormones and Behavior, 54, 455-462. PDF
4. Fernandez, S.M., Lewis, M.C., Pechenino, A.S., Harburger, L.L., Orr, P.T., Gresack, J.E., Schafe, G.E., & Frick, K.M. (2008). Estradiol-induced enhancement of object memory consolidation involves hippocampal extracellular signal-regulated kinase activation and membrane-bound estrogen receptors. Journal of Neuroscience, 28, 8660-8667. PDF
5. Gresack, J.E., Schafe, G.E., Orr, P.T., & Frick, K.M. (2009). Sex differences in contextual fear conditioning are associated with differential ventral hippocampal extracellular signal-regulated kinase activation. Neuroscience, 159, 451-467. PDF
6. Orr, P. T., Lewis, M. C., & Frick, K. M. (2009). Dorsal hippocampal progesterone infusions enhance object recognition in young female mice. Pharmacology, Biochemistry, and Behavior, 93, 177-182. PDF
7. Fan, L., Orr, P.T., Zhao, Z., Chambers, C.H., Lewis, M.C., & Frick, K.M. (2010). Estradiol-induced object memory consolidation in middle-aged female mice requires dorsal hippocampal extracellular signal-regulated kinase and phosphatidylinositol 3-kinase activation. Journal of Neuroscience, 30, 4390-4400. PDF
8. Gearhardt, A., Spoor, S., Orr, P.T., Stice, E., Corbin, W., & Brownell, K. (2011). The neural correlates of “food addiction.” Archives of General Psychiatry, 68, 808-816. PDF
9. Orr, P.T., Rubin, A.J., Fan, L., Kent, B.A., & Frick, K.M. (2012). The progesterone-induced enhancement of object recognition memory consolidation involves activation of the extracellular signal-regulated kinase (ERK) and mammalian target of rapamycin (mTOR) pathways in the dorsal hippocampus. Hormones and Behavior, 61, 487-495. PDF
10. Evans, D.W., Orr, P.T., Lazar, S.M., Breton, D., Gerard, J., Ledbetter, D.H., Janosco, K., Dotts, J., & Batchelder, H. (2012). Human preferences for symmetry: Subjective experience, cognitive conflict, and cortical brain activity. PLoS One, 7(6): e38966. Doi:10.1371/journal.pone.0038966. PDF
11. Fortress, A.M., Fan, L., Orr, P.T., Zhao, Z., & Frick, K.M. (2013). Estradiol-induced object recognition memory consolidation is dependent on activation of mTOR signaling in the dorsal hippocampus. Learning and Memory, 20(3), 147-155. PDF
12. Hanson, E., Bernier, R., Porche, K., Jackson, P.I., Goin-Kochel, R.P., Snyder, L.G., Snow, A.V., Wallace, A.S., Campe, K.L., Zhang, Y., Chen, Q., D’Angelo, D., Moreno-De Luca, A. Orr, P.T., Boomer, K.B., Evans, D.W., Kanne, S., Berry, L., Miller, F.K., Olson, J., Sheet, E., Martin, C.L., Ledbetter, D.H., Spiro, J.E., & Chung, W.K. (2015). The cognitive and behavioral phenotype of the 16p11.2 deletion in a clinically ascertained population. Biological Psychiatry, 77, 785-793 PDF