{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,25]],"date-time":"2026-02-25T02:25:50Z","timestamp":1771986350120,"version":"3.50.1"},"reference-count":18,"publisher":"SAGE Publications","issue":"1","license":[{"start":{"date-parts":[[1999,3,1]],"date-time":"1999-03-01T00:00:00Z","timestamp":920246400000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/journals.sagepub.com\/page\/policies\/text-and-data-mining-license"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Hum Factors"],"published-print":{"date-parts":[[1999,3]]},"abstract":"<jats:p> Younger and older adult participants performed a dynamic multiple-task requiring concurrent processing of 4 independent tasks. Component-task performance emphasis (i.e., task priorities) was biased by differential point allocations across task components. After training, the point structure was modified. Older adults exhibited larger multiple-task performance deficits compared with younger adults; however, the age-related gap in multiple-task performance decreased with practice. The age-related performance difference increased again when task emphasis was changed, but not when demands were changed. Consistent with the training data, the age-related differences diminished again with additional experience on this new task-component emphasis. The data suggest that higher-order, strategic processing may be an important source of age-related differences in complex multiple-task performance. Actual or potential applications of this research include the facilitation of techniques for age-related comprehensive usability testing for products of even moderate complexity <\/jats:p>","DOI":"10.1518\/001872099779577345","type":"journal-article","created":{"date-parts":[[2007,1,18]],"date-time":"2007-01-18T23:08:52Z","timestamp":1169161732000},"page":"26-34","source":"Crossref","is-referenced-by-count":39,"title":["Age-Related Performance in a Multiple-Task Environment"],"prefix":"10.1177","volume":"41","author":[{"given":"Richard A.","family":"Sit","sequence":"first","affiliation":[{"name":"Georgia Institute of Technology, Atlanta, Georgia"}]},{"given":"Arthur D.","family":"Fisk","sequence":"additional","affiliation":[{"name":"Georgia Institute of Technology, Atlanta, Georgia"}]}],"member":"179","published-online":{"date-parts":[[1999,3,1]]},"reference":[{"key":"atypb1","doi-asserted-by":"publisher","DOI":"10.1037\/0882-7974.4.1.66"},{"key":"atypb2","doi-asserted-by":"publisher","DOI":"10.3758\/BF03204659"},{"key":"atypb3","doi-asserted-by":"publisher","DOI":"10.1037\/0096-3445.120.2.131"},{"key":"atypb4","doi-asserted-by":"publisher","DOI":"10.1016\/B978-0-12-101280-9.50015-2"},{"key":"atypb5","doi-asserted-by":"publisher","DOI":"10.1177\/001872089103300103"},{"key":"atypb6","first-page":"83","volume-title":"Aging and skilled performance: Advances in theory and applications","author":"Kramer, A. 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Santa Monica, CA: Human Factors and Ergonomics Society.","DOI":"10.1177\/154193129604000305"},{"key":"atypb18","volume-title":"Manual for the Wechsler adult intelligence scale-revised.","author":"Wechsler, D.","year":"1981"}],"container-title":["Human Factors: The Journal of the Human Factors and Ergonomics Society"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/journals.sagepub.com\/doi\/pdf\/10.1518\/001872099779577345","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/journals.sagepub.com\/doi\/pdf\/10.1518\/001872099779577345","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,3,10]],"date-time":"2025-03-10T15:11:24Z","timestamp":1741619484000},"score":1,"resource":{"primary":{"URL":"https:\/\/journals.sagepub.com\/doi\/10.1518\/001872099779577345"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[1999,3]]},"references-count":18,"journal-issue":{"issue":"1","published-print":{"date-parts":[[1999,3]]}},"alternative-id":["10.1518\/001872099779577345"],"URL":"https:\/\/doi.org\/10.1518\/001872099779577345","relation":{},"ISSN":["0018-7208","1547-8181"],"issn-type":[{"value":"0018-7208","type":"print"},{"value":"1547-8181","type":"electronic"}],"subject":[],"published":{"date-parts":[[1999,3]]}}}