This paper contains a comprehensive review of attention with a significant emphasis on lateralization of function. Connectivity and computation associated with the human visual system is described in detail, and the existing body of psychophysical, neurophysiological and computational studies relating to attention is summarized. This provides the foundation for the later chapters which describe the nature of communication between hemispheres, and the relative efficiency with which each hemisphere handles different attentive and visuospatial tasks. Finally, we outline some possible directions for future research on these matters.

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