A series of search experiments tested detection of targets distinguished from the distractors
by differences on a single dimension. Our aim was to use the pattern of search latencies to …

Previous theories of early vision have assumed that visual search is based on simple two-
dimensional aspects of an image, such as the orientation of edges and lines. It is shown …

Five experiments, with 42 university students, showed that the search rate for a target among
distractors varied dramatically depending on which stimulus played the role of target and …

The nature of the processing of combinations of stimulus dimensions in human vision has
recently been investigated. A study is reported in which visual search for suprathreshold …

A method for assessing the role of low-level factors in complex tasks is described. The
method, which involves comparing simple-discrimination performance and complex-task …

We measured the probability of detecting the target in a visual search task, as a function of
the following parameters: the discriminability of the target from the distractors, the duration of …

Examined the effects of perceptual grouping on search for targets defined by separate
features or by conjunction of features. The author and G. Gelade (see record 1980-04685 …

Three experiments investigated visual search for singleton feature targets. The critical
dimension on which the target differed from the nontargets was either known in advance or …

Preschool children and adults were compared in two experiments examining the basic issue
of whether perceptual representations of objects are built-up from independent features …

Feature-conjunction search performance was investigated as a function of the target's
location in three-dimensional (3-D) space. Ten subjects viewed a display that contained 36 …