| Supporting Battlefield Situation Assessment Through Attention Guidance and Diagnostic Aiding: A Cost-Benefit and Depth of Processing Analysis |
DEC 2001 |
69 pages |
| Authors:
William J. Horrey; Christopher D. Wickens; ILLINOIS UNIV AT URBANA-CHAMPAIGN SAVOYAVIATION RESEARCH LAB
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 | Automated support systems may be useful tools for aiding situation assessment in complex environments such as the military battlefield, medical diagnosis, and crisis management. These environments are marked by large amounts of information which often must be weighted and integrated into a meaningful judgment or assessment. Two experiments examined the effects of attention cueing and decision aiding on information integration tasks in static battlefield situations. In the first experiment, sixteen ... |
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| Effects of Display Frames of Reference on Spatial Judgments and Change Detection |
SEP 2000 |
75 pages |
| Authors:
Lisa C. Thomas; Christopher D. Wickens; ILLINOIS UNIV AT URBANA-CHAMPAIGN SAVOYAVIATION RESEARCH LAB
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| In the present experiment, we compared three types of computer-generated displays of battlefield information in order to address the possible influence of any of four potential causes of display-induced cognitive tunneling, which had been found in the Immersed display condition of Thomas, Wickens, & Merlo, 1999. First, it is possible that information within the initial 90 forward field of view (FFOV) of the 3-D egocentric view in the Immersed display ... |
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| Up or Down? A Comparison of Helmet Mounted Display and Hand Held Display Tasks With High Clutter Imagery |
AUG 2000 |
17 pages |
| Authors:
Michelle Yeh; David Brandenburg; Christopher D. Wickens; James Merio; ILLINOIS UNIV AT URBANA-CHAMPAIGN SAVOYAVIATION RESEARCH LAB
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| The trade-offs between the costs of increasing clutter by overlaying complex information onto the forward field of view using a helmet-mounted display (HMD) versus the cost of scanning when presenting this information on a hand-held display were examined. Eight National Guard personnel were asked to detect, identify, and give azimuth information for targets hidden in terrain presented in a simulated far domain environment while performing a monitoring task in the ... |
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| Herriott Cell Interferometer for Density Measurements in Small-Scale Length Plasmas |
JUN 2000 |
21 pages |
| Authors:
Erik Antonsen; Rodney Burton; Scott Engelman; Greg Spanjers; ILLINOIS UNIV AT URBANA-CHAMPAIGN SAVOYAVIATION RESEARCH LAB
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| The introduction of a Herriott cell into a standard quadrature heterodyne interferometer is evaluated and demonstrated to increase the resolution of the system. Measurements of electron and neutral density during and after the current pulse are sought for modeling purposes for spacecraft contamination from Pulsed Plasma Thrusters. Testing is performed on the UIUC PPT-4, a coaxial electrothermal Pulsed Plasma Thruster pulsing at 20 J. Analytical and experimental analysis is conducted ... |
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| Attention Filtering in the Design of Electronic Map Displays: A Comparison of Color-Coding, Intensity Coding, and Decluttering Techniques |
JUN 2000 |
32 pages |
| Authors:
Michelle Yeh; Christoper D. Wickens; ILLINOIS UNIV AT URBANA-CHAMPAIGN SAVOYAVIATION RESEARCH LAB
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| In a series of experiments, the use of color-coding, intensity coding, and decluttering were compared order to assess their potential benefits for accessing information from electronic map displays. Participants viewed electronic battlefield maps containing five classes of information discriminable by color, intensity, or in the decluttering condition, displayed or removed entirely by a keypress. Participants were asked questions requiring them to focus on objects within a class (i.e., objects presented ... |
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| Attention and Trust Biases in the Design of Augmented Reality Displays |
APR 2000 |
95 pages |
| Authors:
Michelle Yeh; Christopher D. Wickens; ILLINOIS UNIV AT URBANA-CHAMPAIGN SAVOYAVIATION RESEARCH LAB
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| This experiment seeks to examine the relationship between three advanced technology features (presentation of target cueing - and the reliability of that data, image reality, and interactivity) and the attention and trust provided to that information. In particular, we investigate the nature of two sorts of biases: an attention bias, in which the operator focuses attention to an area highlighted by the automation at the expense of other areas of ... |
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| Commanders' Display of Terrain Information: Manipulations of Display Dimensionality and Frame of Reference to Support Battlefield Visualization |
SEP 1999 |
80 pages |
| Authors:
Rachel Banks; Christopher D. Wickens; ILLINOIS UNIV AT URBANA-CHAMPAIGN SAVOYAVIATION RESEARCH LAB
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| To gain a better understanding of the effects of display dimensionality and frame of reference on battlefield commanders' ability to understand the constraints of battlefield terrain, we constructed three electronic map displays, depicting both flat and mountainous terrain, and studied their effects on making various types of tactical judgments. U.S. Military Academy officers were presented with a two-dimensional (2D) contour display, a three- ... |
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| Immersion and Battlefield Visualization: Frame of Reference Effects on Navigation Tasks and Cognitive Tunneling |
MAR 1999 |
45 pages |
| Authors:
Lisa C. Thomas; Christopher D. Wickens; James Merlo; ILLINOIS UNIV AT URBANA-CHAMPAIGN SAVOYAVIATION RESEARCH LAB
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| We compared two types of electronic displays of battlefield information in order to determine how display frame of reference affects a military commander's situation awareness and diagnostic capabilities in a dynamic combat scenario. US Military Academy officers viewed an unfolding ground battle scenario, presented as a sequence of computer-based slides, in one of two display view conditions. The first view condition was a 3-D exocentric (tethered) frame of reference (FOR) ... |
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| Integration of Information Sources of Varying Weights: The Effect of Display Features and Attention Cueing |
JAN 1999 |
29 pages |
| Authors:
Christopher D. Wickens; Heather L. Pringle; James Merlo; ILLINOIS UNIV AT URBANA-CHAMPAIGN SAVOYAVIATION RESEARCH LAB
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| This report reviews research in which multiple sources of variable reliability information are integrated for the purpose of making diagnostic judgments or allocating resources. A framework for considering these experiments is presented, and some evidence is presented regarding the extent to which humans are calibrated, in allocating processing proportionately to the ideal weights (i.e., reliability or importance) of information channels. Two generic sources of bias are identified. Attentional biases occur ... |
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| Constraints on Electronic Map Presentation and Terrain Depiction for Air-Ground Targeting: The Three Map Problem |
JUL 1998 |
20 pages |
| Authors:
Heather Pringle; Christopher D. Wickens; Patricia M. Ververs; ILLINOIS UNIV AT URBANA-CHAMPAIGN SAVOYAVIATION RESEARCH LAB
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| Seventeen pilots performed a flight simulation in which they flew toward a designated ground target, navigating across three legs and finally capturing the target. While they consulted the forward view depicted on an Evans and Sutherland display, two different means of presenting the terrain as an electronic map on an IRIS display were contrasted. In the "tiled" method, the terrain was depicted by three 3D exo-centric maps, covering the distance ... |
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| Effects of Frame of Reference and Viewing Condition on Attentional Issues with Helmet Mounted Displays |
JAN 1998 |
76 pages |
| Authors:
Michelle Yeh; Christopher D. Wickens; F. J. Seagull; ILLINOIS UNIV AT URBANA-CHAMPAIGN SAVOYAVIATION RESEARCH LAB
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| Presentation of information using an helmet mounted display (HMD) allows users to view the world through a visor or eyepiece, on which additional data relevant to the task performed, can be superimposed onto the forward field of view. In the research presented here, the issues of frame of reference and viewing condition (i.e., one eye versus two) are examined in order to determine their effects on tasks of focused and ... |
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| Individual Differences in Time-Sharing Performance |
JAN 1977 |
28 pages |
| Authors:
Branimir Sverko; ILLINOIS UNIV AT URBANA-CHAMPAIGN SAVOYAVIATION RESEARCH LAB
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| The traditional approach to ability and skill assessment employed serial, discrete presentations of assessment tasks. Recently, some authors stressed the need for an approach which would permit administration of more than one assessment task simultaneously. There is a belief that such approach might be more appropriate, especially in the prediction of some complex skill, such as flying, which is likely to involve simultaneous performance and overload. Inherent in this belief ... |
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| The Isolation of Minimum Sets of Visual Image Cues Sufficient for Spatial Orientation during Aircraft Landing Approaches |
NOV 1976 |
50 pages |
| Authors:
Janice E. Eisele; Robert C. Williges; Stanley N. Roscoe; ILLINOIS UNIV AT URBANA-CHAMPAIGN SAVOYAVIATION RESEARCH LAB
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| An experimental investigation of synthetic imaging displays was directed toward the isolation of minimum sets of visual cues sufficient for spatial orientation in ground-referenced aircraft landing approaches. Thirty-two flight instructors viewed static computer-generated airport scenes TV-projected onto a large screen viewed from the cockpit of the twin-engine general aviation trainer. Judgments of lateral and vertical deviations from a four-degree approach to landing aim point in the display were made to ... |
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| Manipulating the Number and Type of Adaptive Variables in Training |
Oct 1974 |
12 pages |
| Authors:
Daniel Gopher; Beverly H Williges; Robert C Williges; Diane L Damos; ILLINOIS UNIV AT URBANA-CHAMPAIGN SAVOYAVIATION RESEARCH LAB
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| To investigate the effectiveness of various types and numbers of adaptive variables, 48 subjects performed a two-dimensional pursuit tracking task for five three-minute training sessions. In the factorial design resulting in eight experimental conditions, three variables (frequency of the forcing function, ratio of acceleration to rate control, and the amount of gain in the control stick) were either fixed or adaptive. A transfer and retention task in which the tracking ... |
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| Application of Response Surface Methodology to Shape Discrimination |
FEB 1974 |
45 pages |
| Authors:
Lawrence A. Scanlan; ILLINOIS UNIV AT URBANA-CHAMPAIGN SAVOYAVIATION RESEARCH LAB
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| The effects of systematically manipulating five physical features of random, closed figures were determined. Subjects were asked to select one of four figures presented as being least like the others. The five features investigated were: number of edges, area, radial length variance, edge length variance, and orientation of the major axis. A five-factor, five-level, central-composite response surface design was employed. The resulting regression equation indicated that four features were reliable ... |
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| Selected Papers on Response Surface Methodology |
AUG 1972 |
142 pages |
| Authors:
Robert C. Williges; Beverly H. Williges; ILLINOIS UNIV AT URBANA-CHAMPAIGN SAVOYAVIATION RESEARCH LAB
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| The report includes five papers concerning the use of response surface methodology in human performance research. |
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