Cognitive tasks in information analysis: Use of event dwell time to characterize component activities Metadata

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  • Main Title Cognitive tasks in information analysis: Use of event dwell time to characterize component activities


  • Author: Sanquist, Thomas F.
    Creator Type: Personal
  • Author: Greitzer, Frank L.
    Creator Type: Personal
  • Author: Slavich, Antoinette L.
    Creator Type: Personal
  • Author: Littlefield, Rik J.
    Creator Type: Personal
  • Author: Littlefield, Janis S.
    Creator Type: Personal
  • Author: Cowley, Paula J.
    Creator Type: Personal


  • Sponsor: United States. Department of Energy.
    Contributor Type: Organization


  • Name: Pacific Northwest National Laboratory (U.S.)
    Place of Publication: Richland, Washington
    Additional Info: Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)


  • Creation: 2004-09-28


  • English


  • Content Description: Technology-based enhancement of information analysis requires a detailed understanding of the cognitive tasks involved in the process. The information search and report production tasks of the information analysis process were investigated through evaluation of time-stamped workstation data gathered with custom software. Model tasks simulated the search and production activities, and a sample of actual analyst data were also evaluated. Task event durations were calculated on the basis of millisecond-level time stamps, and distributions were plotted for analysis. The data indicate that task event time shows a cyclic pattern of variation, with shorter event durations (< 2 sec) reflecting information search and filtering, and longer event durations (> 10 sec) reflecting information evaluation. Application of cognitive principles to the interpretation of task event time data provides a basis for developing “cognitive signatures” of complex activities, and can facilitate the development of technology aids for information intensive tasks.
  • Physical Description: PDFN


  • Keyword: Cognitive Task Analysis, Intelligence, Homeland Security


  • Conference: HFES 2004. Proceedings of the Human Factors and Ergonomics Society 48th Annual Meeting : September 20-24, 2004, New Orleans, Louisiana,
  • Journal: Human Factors and Ergonomics Society, 2004,Santa Monica,,United States.


  • Name: Office of Scientific & Technical Information Technical Reports
    Code: OSTI


  • Name: UNT Libraries Government Documents Department
    Code: UNTGD

Resource Type

  • Article


  • Text


  • Report No.: PNWD-SA-6532
  • Grant Number: AC05-76RL01830
  • Office of Scientific & Technical Information Report Number: 882587
  • Archival Resource Key: ark:/67531/metadc874907