Cognitive rehabilitation: attention and neglect.

Cognitive neuroscience can make a significant contribution towards the development of a scientific basis for the practice of brain rehabilitation. Though rehabilitation is a vast worldwide industry, there is little scientific basis for the training and therapy that are designed to help damaged brain circuits to recover. The systematic application of cognitive neuroscience models to rehabilitation can not only foster better, more theoretically grounded rehabilitation, but the models themselves can be tested and modified by data generated in rehabilitation-oriented research. The example of unilateral spatial neglect is used here to show how non-intuitive but clinically tractable methods can emerge out of systematic application of cognitive neuroscience to the problem of how to foster dynamic change and recovery in the damaged brain. Examples are given of recently developed rehabilitation methods for unilateral spatial neglect that are both derived from theoretical models of cognitive function, and that feed back into these models. These include dorsal-ventral stream interactions, perceptuo-motor interactions, interhemispheric inhibitory dynamics, and arousal-spatial attention interactions. It will be to the mutual benefit of basic cognitive neuroscience and rehabilitation if this type of research is expanded into other domains of cognitive function, in which similar theory-practice interactions exist.