Journal article
Demands on Attention and the Role of Response Priming in Visual Discrimination of Feature Conjunctions
Journal of experimental psychology. Human perception and performance, Vol.30(5), pp.836-852
10/2004
Handle:
https://hdl.handle.net/2376/113119
PMID: 15462624
Abstract
This study examined how response mapping of features within single- and multiple-feature targets affects decision-based processing and attentional capacity demands. Observers judged the presence or absence of 1 or 2 target features within an object either presented alone or with distractors. Judging the presence of 2 features relative to the less discriminable of these features alone was faster (conjunction benefits) when the task-relevant features differed in discriminability and were consistently mapped to responses. Conjunction benefits were attributed to asynchronous decision priming across attended, task-relevant dimensions. A failure to find conjunction benefits for disjunctive conjunctions was attributed to increased memory demands and variable feature-response mapping for 2- versus single-feature targets. Further, attentional demands were similar between single- and 2-feature targets when response mapping, memory demands, and discriminability of the task-relevant features were equated between targets. Implications of the findings for recent attention models are discussed.
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Details
- Title
- Demands on Attention and the Role of Response Priming in Visual Discrimination of Feature Conjunctions
- Creators
- Lisa R Fournier - Department of Psychology, Washington State UniversityRhonda J Herbert - Department of Psychology, Washington State UniversityCarrie Farris - Department of Psychology, Washington State University
- Publication Details
- Journal of experimental psychology. Human perception and performance, Vol.30(5), pp.836-852
- Academic Unit
- Psychology, Department of
- Publisher
- American Psychological Association
- Identifiers
- 99900547596301842
- Language
- English
- Resource Type
- Journal article