• Publications
  • Influence
The Neural Basis of Economic Decision-Making in the Ultimatum Game
Functional magnetic resonance imaging of Ultimatum Game players was used to investigate neural substrates of cognitive and emotional processes involved in economic decision-making and significantly heightened activity in anterior insula for rejected unfair offers suggests an important role for emotions in decision- making. Expand
Independent Coding of Reward Magnitude and Valence in the Human Brain
A double dissociation was observed, with the P300 sensitive to reward magnitude but insensitive to reward valence and the feedback negativity showing the opposite pattern, suggesting that these two fundamental features of rewarding stimuli are evaluated rapidly and separately in the human brain. Expand
Social Decision-Making: Insights from Game Theory and Neuroscience
  • A. Sanfey
  • Psychology, Medicine
  • Science
  • 26 October 2007
These findings provide a fruitful starting point for improved models of social decision-making, informed by the formal mathematical approach of economics and constrained by known neural mechanisms. Expand
Decoding the role of the insula in human cognition: functional parcellation and large-scale reverse inference.
The present study suggests that the insula is instrumental in integrating disparate functional systems involved in processing affect, sensory-motor processing, and general cognition and is well suited to provide an interface between feelings, cognition, and action. Expand
The neural correlates of theory of mind within interpersonal interactions
A remarkable degree of overlap was observed in brain areas that activated to partner decisions in the two games, including commonly observed theory of mind areas, as well as severalbrain areas that have not been reported previously and may relate to immersion of participants in real social interactions that have personally meaningful consequences. Expand
The neuroscience of social decision-making.
The role of the prefrontal cortex in prudent social decision-making, at least when social environments are relatively stable, is highlighted and recent progress has been made in understanding the neural bases of individual variation in social decided-making. Expand
Affective state and decision-making in the Ultimatum Game
Skin conductance activity was higher for unfair offers and was associated with the rejection of unfair offers in the Ultimatum Game, and this pattern was only observed for offers proposed by human conspecifics, but not for offers generated by computers. Expand
Instructional control of reinforcement learning: A behavioral and neurocomputational investigation
A neural network simulations that capture the interactions between instruction-driven and reinforcement-driven behavior via two potential neural circuits are presented, suggesting the existence of a "confirmation bias" in which the PFC/HC system trains the reinforcement system by amplifying outcomes that are consistent with instructions while diminishing inconsistent outcomes. Expand
Functional Imaging of Decision Conflict
The neurobiological underpinnings of decision conflict are investigated, and it is shown that the anterior cingulate cortex does indeed index conflict at the decision stage, and does so for a complex decision task, one that requires the integration of beliefs and preferences and not just perceptual judgments. Expand
Neuroeconomics: cross-currents in research on decision-making
The field of neuroeconomics has recently emerged as an inter-disciplinary effort to bridge the gap between psychology and neuroscience, and offers exciting potential for the construction of more accurate models of decision-making. Expand