… We address these questions: (a) Can attention be simultaneously focused on separate
locations in the visual field? (b) When attention is prefocused on an invalid display location, does …

… for a visual target within a frame of other elements (scene). We are especially interested
in whether the allocation of visual attention affects the asymmetries, and in whether attention-…

… We believe that when they were deliberately paying attention to a specific point in the right
visual field, the subjects of our first experiment simply made themselves ready to respond …

… allocation of attention in the visual field. Subjects responded to a target appearing either 6.5
o to the right or to the left of fixation in a field … lens theories that spatial attention can switch …

… In an effort to examine the flexibility with which attention can be allocated in visual space, …
the visual field We examined this issue by precuing two separate areas of the visual field and …

… onto the fovea (overt attention) or by increased processing of visual information in neurons
… of the visual field (covert attention). This review will examine two aspects of visual attention: …

… do we know which parts of the visual field are processed more; or, putting it in a somewhat
vaguer but more general form, which parts of the visual field are attended* to. One possible …

… ner, Snyder, & Davidson, 1980) have developed a paradigm to study subjects' ability to
direct attention to different points across the visual field. They have discovered that this ability is …

… display is appreciably shortened if the position in the visual field to be occupied by the … of
visual attention as a resource or capacity that can be concentrated at locations in the visual field …

… visual attention to cued targets. While observers prepared a saccade, we flashed an irrelevant,
but salient, color cue in their visual periphery and measured the allocation … the visual field. …