Cognitive neuroscience was born when the theories and methods of cognitive psychology and neuropsychology were combined after a long period of parallel development. Over the last few decades, neuroscientific studies have begun to meet the challenge of understanding cognitive functions, thereby identifying the causal chain of neural events that underlies cognition. The development of powerful brain imaging technologies is now likely to present a range of opportunities in many spheres of public life, such as the criminal and civil justice system, and the business world.