To generate coherent behavior, the brain needs to attend selectively t o the many objects that are present in the environment, but how does t he brain know which objects 'belong together' and what sense informati on is most important? The subject of attentional mechanisms has a long history in cognitive psychology, but new developments in cognitive ne uroscience, and new insights into how attention and action are integra ted, have transformed the field. This book is the first to bring toget her leading researchers to discuss the these new experimental findings .