Although object-based attention enhances perceptual processing of information appearing within the boundaries of a selected object, little is known about the consequences for information in the object's surround. The authors show that distance from an attended object's center of mass determines reaction time (RT) to targets in the surround. Of 2…

Uni- and multidimensional processing of 6- to 9-year olds was studied using recall tasks in which an array of stimuli was reconstructed to match a model array. Results indicated that both age groups were able to solve multidimensional problems, but that solution rate was retarded by the unidimensional processing of highly salient dimensions.…

Results suggest that selective attention is a multifaceted skill, with development of its parts progressing at different rates. (Author)

Varied conditions under which children aged four to five years matched the area of a rectangle with a given width or height to that of a square. Subjects matched one dimension of the rectangle to one side of the square suggesting that area matches seemed to be based on a side-matching strategy. (Author/AS)