Research Summary: My research interests center on the mechanisms by which animals learn predictive relationships in their environment(e.g., Pavlovian and operant conditioning). Using rodent models, I investigate both the circumstances under which animals learn these predictive associations, as well as the neural systems that underly the process. Of particular interest to me are the mechanisms by which animals use contextual cues to retrieve "ambiguous" memories, and response recovery phenomena observed following extinction procedures (i.e., renewal, reinstatement).
Lamoureux, J.A., & Tow, S. (2008). Hippocampal lesions abolish renewal of aversive, but not appetitive, conditioned responding. Behavioral Neuroscience, in prep.
Lamoureux, J.A., Meck, W.H., & Williams, C.L. (2008). Prenatal dietary choline manipulation alters context sensitivity of Pavlovian conditioning in young adult rats. Learning & Memory, submitted.
Lamoureux, J.A., Schmidt, J.A., Gould, C.E., & Buhusi, C.V. (2006).
Neurotoxic lesions of the hippocampus attenuate renewal but not reinstatement of appetitive Pavlovian conditioning. Proceedings and Abstracts of the Eastern Psychological Association, 77, 50.
McKeon-O’Malley, C., Siwek, D., Lamoureux, J. A., Williams, C.L., & Kowall, N.W. (2003).
Prenatal choline deficiency decreases the cross-sectional area of cholinergic neurons in the medial septal nucleus. Brain Research, 977, 278-283.
Lamoureux, J.A. (2008). Extinction and savings in serial feature-positive discriminations: Tests of a network model of occasion setting. Journal of Experimental Psychology: Animal Behavior Processes, in prep.
