Accession Number:

ADA416505

Title:

The Effectiveness of User Models in Reducing Cognitive Load

Descriptive Note:

Final rept. 15 May 1997-31 Dec 2002

Corporate Author:

HAWAII UNIV AT MANOA HONOLULU

Personal Author(s):

Report Date:

2003-06-30

Pagination or Media Count:

9.0

Abstract:

We strive to improve human performance through the adaptive filtering of information. The research results will help guide the design of future crisis battlefield management interfaces. Our experiments show 1 eye fixations can be used as a measure of cognitive load in simple visual search tasks, 2 hand and finger pressures on a mouse indicate cognitive load in target selection tasks, 3 mouse click signatures can be used for continuous identity verification, 4 nested objects are significantly more difficult to count than adjacent objects, 5 performance decreases significantly with both map complexity and task complexity, 6 up to three static distractors make no difference in map route finding performance, 7 increasing numbers of moving distractors decreases map route finding performance, 8 having one distractor at a time move makes no difference in map route finding performance, 9 judgment of ratios is significantly easier when presented two-dimensionally rather than linearly, 10 training in one graphic data model style does not transfer to other graphic styles.

Subject Categories:

  • Computer Hardware
  • Psychology
  • Anatomy and Physiology

Distribution Statement:

APPROVED FOR PUBLIC RELEASE