Workload induced spatio-temporal distortions and safety of flight

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A theoretical analysis of the relationship between cognitive complexity and the perception of time and distance is presented and experimentally verified. Complex tasks produce high rates of mental representation which affect the subjective sense of duration and, through the subjective time scale, the percept of distance derived from dynamic visual cues (i.e., visual cues requiring rate integration). The analysis of the interrelationship of subjective time and subjective distance yields the prediction that, as a function of cognitive complexity, distance estimates derived from dynamic visual cues will be longer than the actual distance whereas estimates based on perceived temporal duration will ... continued below

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Pages: (19 p)

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Barrett, C.L.; Weisgerber, S.A. (Los Alamos National Lab., NM (USA) & Naval Weapons Center, China Lake, CA (USA)) January 1, 1989.

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Description

A theoretical analysis of the relationship between cognitive complexity and the perception of time and distance is presented and experimentally verified. Complex tasks produce high rates of mental representation which affect the subjective sense of duration and, through the subjective time scale, the percept of distance derived from dynamic visual cues (i.e., visual cues requiring rate integration). The analysis of the interrelationship of subjective time and subjective distance yields the prediction that, as a function of cognitive complexity, distance estimates derived from dynamic visual cues will be longer than the actual distance whereas estimates based on perceived temporal duration will be shorter than the actual distance. This prediction was confirmed in an experiment in which subjects (both pilots and non-pilots) estimated distances using either temporal cues or dynamic visual cues. The distance estimation task was also combined with secondary loading tasks in order to vary the overall task complexity. The results indicated that distance estimates based on temporal cues were underestimated while estimates based on visual cues were overestimated. This spatio-temporal distortion effect increased with increases in overall task complexity. 30 refs., 6 figs., 1 tab.

Physical Description

Pages: (19 p)

Notes

NTIS, PC A03/MF A01 - OSTI; GPO Dep.

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  • Advisory Group for Aerospace Research and Development (AGARD) meeting, Copenhagen (Denmark), 2-6 Oct 1989

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  • Other: DE89016613
  • Report No.: LA-UR-89-2895
  • Report No.: CONF-8910208--1
  • Grant Number: W-7405-ENG-36
  • Office of Scientific & Technical Information Report Number: 5575908
  • Archival Resource Key: ark:/67531/metadc1092406

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

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  • January 1, 1989

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  • Feb. 10, 2018, 10:06 p.m.

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  • May 30, 2018, 1:42 p.m.

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Barrett, C.L.; Weisgerber, S.A. (Los Alamos National Lab., NM (USA) & Naval Weapons Center, China Lake, CA (USA)). Workload induced spatio-temporal distortions and safety of flight, article, January 1, 1989; New Mexico. (digital.library.unt.edu/ark:/67531/metadc1092406/: accessed October 15, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.