Predictive utility of an objective measure of situation awareness

1990 ◽  
Author(s):  
Mica R. Endsley
Keyword(s):  
Situation Awareness ◽  
Objective Measure ◽  
Predictive Utility

A Comparative Analysis of Sagat and Sart for Evaluations of Situation Awareness

1998 ◽  
Vol 42 (1) ◽  
pp. 82-86 ◽  
Author(s):  
Mica R. Endsley ◽  
Stephen J. Selcon ◽  
Thomas D. Hardiman ◽  
Darryl G. Croft
Keyword(s):  
Situation Awareness ◽  
Global Assessment ◽  
Situational Awareness ◽  
Objective Measure ◽  
Evaluation Study ◽  
Performance Measure ◽  
Subjective Rating ◽  
Advantages And Disadvantages ◽  
Two Measures ◽  
Highly Correlated

Situation awareness (SA) has become an important criterion for systems evaluation efforts. Several measures of SA have been developed, the most widely used among them being the Situation Awareness Global Assessment Technique (SAGAT) and the Situational Awareness Rating Technique (SART). SAGAT provides an objective measure of SA based on queries during freezes in a simulation. SART provides a subjective rating of SA by operators. This paper presents a direct comparison of the two measures which were used within a display evaluation study. It was found that both SART and SAGAT contributed sensitivity and diagnosticity regarding the effects of the display concept. The SART measure was highly correlated with subjective measures of confidence level, a simple subjective SA measure and a subjective performance measure. The SAGAT and SART measures were not correlated with each other. The implications of these findings for the interpretation of subjective SA measures are discussed as well as advantages and disadvantages of both measurement approaches.

Situation Awareness in Driving While Using Adaptive Cruise Control and a Cell Phone

2005 ◽  
Vol 49 (3) ◽  
pp. 381-385 ◽  
Author(s):  
Ruiqi Ma ◽  
Mohamed A. Sheik-Nainar ◽  
David B. Kaber
Keyword(s):  
Situation Awareness ◽  
Cell Phone ◽  
Adaptive Cruise Control ◽  
Objective Measure ◽  
Cruise Control ◽  
Safe Driving ◽  
Phone Calls ◽  
A Cell ◽  
Driving Task ◽  
Driving Conditions

This research investigated the effects of an adaptive cruise control (ACC) system, and cell phone use in driving, on a direct objective measure of situation awareness (SA). Subjects drove a virtual car in a medium-fidelity driving simulation and performed a following task. Half of the subjects were required to respond to cell phone calls and all subjects completed trials with and without use of the ACC system. SA was measured using a simulation freeze technique and SA queries on the driving situation. Results indicated use of the ACC system to improve driving task SA under normal driving conditions, and cell phone conversations degraded SA. Results also revealed the ACC system to improve safe driving headway distance. Although the deviations in headway distance from an optimum were greater during cell phone conversations, this did not prove to be significant in terms of performance under normal driving conditions.

Using Pupillometry and Electromyography to Track Positive and Negative Affect During Flight Simulation

2014 ◽  
Vol 4 (1) ◽  
pp. 23-32 ◽  
Author(s):  
Jennifer G. Tichon ◽  
Tim Mavin ◽  
Guy Wallis ◽  
Troy A. W. Visser ◽  
Stephan Riek
Keyword(s):  
Positive Affect ◽  
Cognitive Processing ◽  
Situation Awareness ◽  
Fixation Duration ◽  
Muscle Activation ◽  
Evaluation Method ◽  
Objective Measure ◽  
Flight Simulation ◽  
Pilot Performance ◽  
Saccade Velocity

Affect is a key determinant of performance, due to its influence on cognitive processing. Negative emotions such as anxiety are recognized cognitive stressors shown to degrade decision making and situation awareness. Conversely, positive affect can improve problem solving and facilitate recall. This exploratory pilot study used electromyography and pupillometry measures to track pilots’ levels of negative and positive affect while training in a flight simulator. Fixation duration and saccade rate were found to correspond reliably to pilot self-reports of anxiety. Additionally, large increases in muscle activation were also recorded when higher anxiety was reported. Decreases in positive affect correlated significantly with saccade rate, fixation duration, and mean saccade velocity. Results are discussed in terms of using psychophysiological measures to provide a continuous, objective measure of pilot affective levels as an additional evaluation method to support assessment of pilot performance in simulation training environments.

Toward a stepped care approach to treating problem drinkers: the predictive utility of within-treatment variables and therapist prognostic ratings

Addiction ◽  
1997 ◽  
Vol 92 (11) ◽  
pp. 1479-1490 ◽  
Author(s):  
F. Curtis Breslin ◽  
Mark B. Sobell ◽  
Linda C. Sobell ◽  
Giao Buchan ◽  
John A. Cunningham
Keyword(s):  
Stepped Care ◽  
Problem Drinkers ◽  
Predictive Utility ◽  
Care Approach

Semantic Approach to Public Health Situation Awareness Design and Methodology

2004 ◽  
Author(s):  
Parsa Mirhaji ◽  
S. Lillibridge ◽  
R. Richesson ◽  
J. Zhang ◽  
J. Smith
Keyword(s):  
Public Health ◽  
Situation Awareness ◽  
Semantic Approach ◽  
Health Situation

Automated Communication Analysis for Interactive Situation Awareness Assessment

2004 ◽  
Author(s):  
Cheryl A. Bolstad ◽  
◽  
Cleotilde Gonzalez ◽  
John Graham
Keyword(s):  
Situation Awareness ◽  
Communication Analysis
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