Literaturnachweis - Detailanzeige
| Autor/inn/en | Dosher, Barbara Anne; Han, Songmei; Lu, Zhong-Lin |
|---|---|
| Titel | Information-Limited Parallel Processing in Difficult Heterogeneous Covert Visual Search |
| Quelle | In: Journal of Experimental Psychology: Human Perception and Performance, 36 (2010) 5, S.1128-1144 (17 Seiten)
PDF als Volltext |
| Sprache | englisch |
| Dokumenttyp | gedruckt; online; Zeitschriftenaufsatz |
| ISSN | 0096-1523 |
| DOI | 10.1037/a0020366 |
| Schlagwörter | Eye Movements; Human Body; Search Strategies; Attention; Cognitive Processes; Models; Experiments; Undergraduate Students; Observation; Experimental Psychology |
| Abstract | Difficult visual search is often attributed to time-limited serial attention operations, although neural computations in the early visual system are parallel. Using probabilistic search models (Dosher, Han, & Lu, 2004) and a full time-course analysis of the dynamics of covert visual search, we distinguish unlimited capacity parallel versus serial search mechanisms. Performance is measured for difficult and error-prone searches among heterogeneous background elements and for easy and accurate searches among homogeneous background elements. Contrary to the claims of time-limited serial attention, searches in heterogeneous backgrounds instead exhibited nearly identical search dynamics for display sizes up to 12 items. A review and new analyses indicate that most difficult as well as easy visual searches operate as an unlimited-capacity parallel analysis over the visual field within a single eye fixation, which suggests limitations in the availability of information, not temporal bottlenecks in analysis or comparison. Serial properties likely reflect overt attention expressed in eye movements. (Contains 1 table and 8 figures.) (As Provided). |
| Anmerkungen | American Psychological Association. Journals Department, 750 First Street NE, Washington, DC 20002-4242. Tel: 800-374-2721; Tel: 202-336-5510; Fax: 202-336-5502; e-mail: order@apa.org; Web site: http://www.apa.org/publications |
| Erfasst von | ERIC (Education Resources Information Center), Washington, DC |
| Update | 2017/4/10 |
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