Conjunctions Can Guide Attention Through Visual Search

Spatial Attention in Visual Search for Features and Feature Conjunctions

Spatial attention was measured in visual search tasks using a spatial probe . Both speed and accuracy measures showed that in a conjunction task, spatial attention was allocated to locations according to the presence of target features. Also, contrary to some predictions, spatial attention was used when a clearly distinguishable feature defined the target. The results raise questions about any ...

Feature Conjunctions in Visual Search

Selective Tuning (ST) [1] presents a framework for modeling attention and in this paper we show how it performs in visual search tasks. Two types of tasks are presented, a motion search task and an object search task. Both tasks are successfully tested with different feature and conjunction visual searches.

Object - based target templates guide attention during visual search

Bound to guide: A surprising, preattentive role for conjunctions in visual search

According to Guided Search (and similar models), features are only conjoined once an object is attended. This assertion is supported by many experiments: e.g. conjunctions of features do not pop-out in visual search and observers are poor at judging proportions of different types of conjunctions in displays. Thus, observers appear to be insensitive to the preattentive conjunctions of features. ...

Category-based guidance of spatial attention during visual search for feature conjunctions.

The question whether alphanumerical category is involved in the control of attentional target selection during visual search remains a contentious issue. We tested whether category-based attentional mechanisms would guide the allocation of attention under conditions where targets were defined by a combination of alphanumerical category and a basic visual feature, and search displays could conta...