ABSTRACT
This chapter provides an overview of findings from neuropsychological and neurophysiological research that have contributed to elucidating several aspects of attention. To define the issues and introduce the key experimental paradigms each section begins with a brief review of the literature on normal participants. The organization of the chapter follows a plan that is typical in present-day psychology (and neuropsychology) of attention. The first issue to be discussed is where, in the sequence of processing stages, attention begins to exert its influence. The second issue is whether attention selects regions of space or objects for enhanced processing. The third issue is how attention moves in space. The last issue is whether attentional selection is achieved by enhancing relevant information or inhibiting irrelevant information.
