Gregory Russell Samanez-Larkin

Gregory Russell Samanez-Larkin

Assistant Professor of Psychology and Neuroscience

Education & Training

  • Ph.D., Stanford University 2010

  • M.A., Stanford University 2008


Research in our lab examines how individual and age differences in motivation and cognition influence decision making across the life span. Our research is at the intersection of a number of subfields within psychology, neuroscience, and economics including human development, affective science, cognitive neuroscience, behavioral economics, and finance. We use a combination of behavioral and neuroimaging techniques ranging from detailed measurement of functional brain activity (fMRI) and neuroreceptors (PET) in the laboratory to experience sampling in everyday life.

Leong, JK, MacNiven, KH, Samanez-Larkin, GR, and Knutson, B. "Distinct neural circuits support incentivized inhibition." Neuroimage 178 (September 2018): 435-444. Full Text

Castrellon, J, Seaman, K, Crawford, J, Young, J, Smith, C, Dang, L, Hsu, M, Cowan, R, Zald, D, and Samanez-Larkin, G. "Individual differences in dopamine are associated with reward discounting in clinical groups but not in healthy adults." (August 2, 2018). Full Text

Dang, LC, Samanez-Larkin, GR, Smith, CT, Castrellon, JJ, Perkins, SF, Cowan, RL, Claassen, DO, and Zald, DH. "FTO affects food cravings and interacts with age to influence age-related decline in food cravings." Physiology & Behavior 192 (August 2018): 188-193. Full Text

Dang, LC, Samanez-Larkin, GR, Castrellon, JJ, Perkins, SF, Cowan, RL, and Zald, DH. "Individual differences in dopamine D2 receptor availability correlate with reward valuation." Cognitive, Affective & Behavioral Neuroscience 18.4 (August 2018): 739-747. Full Text

von Helversen, B, Mata, R, Samanez-Larkin, GR, and Wilke, A. "Foraging, exploration, or search? On the (lack of) convergent validity between three behavioral paradigms." Evolutionary Behavioral Sciences 12.3 (July 2018): 152-162. Full Text

Seaman, KL, Green, MA, Shu, S, and Samanez-Larkin, GR. "Individual differences in loss aversion and preferences for skewed risks across adulthood." Psychology and Aging 33.4 (June 2018): 654-659. Full Text

Holland, CAC, Ebner, NC, Lin, T, and Samanez-Larkin, GR. "Emotion identification across adulthood using the Dynamic FACES database of emotional expressions in younger, middle aged, and older adults." Cognition & Emotion (March 29, 2018): 1-13. Full Text

Seaman, KL, Brooks, N, Karrer, TM, Castrellon, JJ, Perkins, SF, Dang, L, Hsu, M, Zald, DH, and Samanez-Larkin, GR. "Subjective Value Representations during Effort, Probability, and Time Discounting across Adulthood." Social cognitive and affective neuroscience (March 28, 2018). Full Text

Kircanski, K, Notthoff, N, DeLiema, M, Samanez-Larkin, GR, Shadel, D, Mottola, G, Carstensen, LL, and Gotlib, IH. "Emotional arousal may increase susceptibility to fraud in older and younger adults." Psychology and Aging 33.2 (March 2018): 325-337. Full Text

Seaman, KL, Leong, JK, Wu, CC, Knutson, B, and Samanez-Larkin, GR. "Individual differences in skewed financial risk-taking across the adult life span." Cognitive, affective & behavioral neuroscience 17.6 (December 2017): 1232-1241. Full Text


Samanez-Larkin, GR. "Chapter 3 - Decision Neuroscience and Aging." Aging and Decision Making: Empirical and Applied Perspectives. February 23, 2015. 41-60. Full Text

Sofia Beas, B, Setlow, B, Samanez-Larkin, GR, and Bizon, JL. "Chapter 2 - Modeling Cost-Benefit Decision Making in Aged Rodents." Aging and Decision Making: Empirical and Applied Perspectives. February 23, 2015. 17-40. Full Text

Samanez-Larkin, GR, Hagen, TA, and Weiner, DJ. "Financial decision making across adulthood." The Psychological Science of Money. April 1, 2014. 121-135. Full Text

Knutson, B, and Samanez-Larkin, GR. "Brain, Decision, and Debt." A Debtor World: Interdisciplinary Perspectives on Debt. January 24, 2013. Full Text