People - Stefan Ursu

Stefan Ursu, M.D., Ph.D.
Assistant Adjunct Professor of Psychiatry
916-734-4149

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Education
Ph.D., Neuroscience, University of Pittsburgh, 2004
M.D., University of Medical and Pharmaceutical Sciences, Iasi, Romania, 1995

Research Interests
Dr. Ursu's research explores the factors that influence reward representations and implementation of cognitive control in human decision making. The neural substrates of these mechanisms are explored using behavioral, neuroimaging (i.e. fMRI) and electrophysiological (i.e. ERP) methods. Of particular interest are the specific roles played by brain structures such as the orbitofrontal and dorsolateral prefrontal cortices, basal ganglia and amygdala. The general principles derived from studies of healthy subjects are subsequently used in investigations of the disturbances of reward and control-related processes in schizophrenia, drug addiction and anxiety disorders.

Representative Publications

Ursu S. and Carter C.S. (2005). Outcome representations, counterfactual comparisons and the human orbitofrontal cortex: Implications for neuroimaging studies of decision-making. Brain Research: Cognitive Brain Research 23(1): 51-60. pdf

MacDonald, III A.W, Carter C.S., Kerns J.G., Ursu S., Barch D.M., Holmes A.J., Stenger, V.A., Cohen, J.D. (2005). Specificity of prefrontal dysfunction and context processing deficits to schizophrenia in a never medicated first-episode psychotic sample. American Journal of Psychiatry 162(3): 475-84. pdf

Ursu S., Stenger V.A., Shear M.K., Jones M., Carter C.S. (2003). Overactive action monitoring in obsessive-compulsive disorder: evidence from functional MRI. Psychological Science, 14(4): 247-353. pdf

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