Uncertainty Reading Group – 4/1
A feature-integration theory integration of attention
- features are processed automatically and in parallel; objects are detected much later in the cognitive process
- features are integrated to create the impressions of objects
- gave 9 different tasks to illustrate feature integration: visual search
- this paper focuses on features singly vs. features in conjunction
- features defined by conjunction are harder to find: require integration of basic features
- conjunction requires serial processing, whereas individual features can be processed in parallel
- separable vs. integral variables: how independently two visual variables are perceived; how easily they can be used to convey independent variables
- the number of targets and the size of the display affects participants’ ability to detect features
- more distractors=longer search for conjunctions