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oai:www.ideals.illinois.edu:2142/82107 2023-07-11 col_2142_5131 col_2142_11614 com_2142_5130 com_2142_11613 com_2142_8903

Christopher Wickens Colcombe, Angela Marie 2015-09-25T20:39:13Z 2015-09-25T20:39:13Z 10000-01-01 2006 2006 Automated aids are typically designed to help people monitor for particular events or situations during complex tasks. Automated aids can be useful by taking over a function once performed by the human thereby freeing up the person to do other tasks. However, automated aids may also introduce costs to task performance that are not readily apparent. In four experiments, we examined the impact of interruptions by an alarm embedded within a Cockpit Display of Traffic Information (CDTI) on two types of concurrent tasks; a compensatory tracking task and a working memory task. In addition, we examined how three important alarm characteristics; the informativeness (three vs. two stage alerts), the modality, and the threshold of the alert, affected both conflict detection and concurrent task performance. Automated aids with higher false alarm rates resulted in poorer concurrent task performance, as evidenced by higher tracking error and reduced working memory accuracy. Likelihood alerts did not mitigate costs associated with performance decrements due to the reduced alert threshold. Finally, auditory alerts tended to produce an auditory preemption effect, driving attention quickly to the alerted domain at the expense of concurrent task performance. Made available in DSpace on 2015-09-25T20:39:13Z (GMT). No. of bitstreams: 2 license.txt: 4848 bytes, checksum: 96035ab3f5e1c23cc7138a224ce498bd (MD5) 3223569.pdf: 1786402 bytes, checksum: 02d361f810a42ac635886b35c599286b (MD5) Previous issue date: 2006 Embargo set by: Seth Robbins for item 83388 Lift date: Forever Reason: Restricted to the U of I community idenfinitely during batch ingest of legacy ETDs Restricted to the U of I community idenfinitely during batch ingest of legacy ETDs U of I Only 79 p. Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 2006. http://hdl.handle.net/2142/82107 (MiAaPQ)AAI3223569 eng Psychology, Cognitive Integrating Imperfect Automated Aids Into a Multi -Task Situations text Psychology Psychology University of Illinois at Urbana-Champaign Dissertation Ph.D.