Visual Search for Features and Conjunctions Following Declines in the Useful Field of View.
Background/Study Context: Typical measures for assessing the useful field (UFOV) of view involve many components of attention. The objective of the current experiment was to examine differences in visual search efficiency for older individuals with and without UFOV impairment. Methods: The authors u...
| Publicado en: | Experimental Aging Research Vol. 38; no. 4; pp. 411 - 422 |
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| Autores principales: | , , , , |
| Formato: | research tables/charts Journal Article |
| Publicado: |
Taylor & Francis Ltd
Jul-Sep2012
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=104481807&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 104481807 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 0361073X 1HO jtl: Experimental Aging Research issn: 0361073X maglogo: N pubinfo: dt: Jul-Sep2012 vid: 38 iid: 4 pid: 377 pub: Taylor & Francis Ltd place: Philadelphia, Pennsylvania artinfo: ui: 104481807 78084185 10.1080/0361073X.2012.699370 NLM22830667 104481807 ppf: 411 ppct: 11 formats: fmt: @attributes: type: P tig: atl: Visual Search for Features and Conjunctions Following Declines in the Useful Field of View. aug: au: Cosman, Joshua D. Lees, Monica N. Lee, John D. Rizzo, Matthew Vecera, Shaun P. affil: Departments of Neuroscience and Psychology, University of Iowa, Iowa City, USA sug: subj: Attention Vision Disorders Aging Productivity Human Funding Source Experimental Studies Comparative Studies Visual Fields Computer-Aided Design Distraction Physical Performance Behavior Safety Aged Sensory Stimulation Analysis of Variance Reaction Time Control Group Aged: 65+ years ab: Background/Study Context: Typical measures for assessing the useful field (UFOV) of view involve many components of attention. The objective of the current experiment was to examine differences in visual search efficiency for older individuals with and without UFOV impairment. Methods: The authors used a computerized screening instrument to assess the useful field of view and to characterize participants as having an impaired or normal UFOV. Participants also performed two visual search tasks, a feature search (e.g., search for a green target among red distractors) or a conjunction search (e.g., a green target with a gap on its left or right side among red distractors with gaps on the left or right and green distractors with gaps on the top or bottom). Results: Visual search performance did not differ between UFOV impaired and unimpaired individuals when searching for a basic feature. However, search efficiency was lower for impaired individuals than unimpaired individuals when searching for a conjunction of features. Conclusion: The results suggest that UFOV decline in normal aging is associated with conjunction search. This finding suggests that the underlying cause of UFOV decline may arise from an overall decline in attentional efficiency. Because the useful field of view is a reliable predictor of driving safety, the results suggest that decline in the everyday visual behavior of older adults might arise from attentional declines. pubtype: Academic Journal doctype: research tables/charts Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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