The empirical and theoretical analysis of executive control processes, dormant for many years, has grown to become one of the most fertile areas of research in cognitive psychology and cognitive neuroscience. Because executive functions are thought to have a pervasive role in maintaining optimal information processing across many processing situations, issues related to executive control cut across many traditional research divides. Unique among many other areas of research in cognition, questions about the influence of ageing have figured prominently in executive control research. There is...