Neuroeconomics is a new discipline that integrates economics, psychology and neuroscience. It combines economic and psychological theories with neuroscientific methodologies. The use of neuroimaging, single-cell recording and other methods from neuroscience has allowed the study of the neural correlates of basic economic and psychological concepts. Examples of research conducted with neuroeconomic methods have been studies on the neural basis of risk and uncertainty, choice over time (present versus future), bargaining, competition and altruism.