What determines whether we make good or bad decisions? Professor Michael Platt of the University of Pennsylvania is a biological anthropologist, neuroscientist, and neuroeconomist whose research has elucidated the neuronal networks involved in decision-making. By recording electrical activity in neurons of non-human primates while they are making decisions Platt has shown that circuits in prefrontal cortex and adjacent cingulate gyrus are particularly important in decision-making. More recently he has been applying his knowledge of the neurobiology of decision-making to help businesses enhance their productivity.