Human Performance Modeling and Decision Analysis in a Concept Crew Workstation

Author(s):  
Thaddeus M. Wojcik

As part of the effort to evaluate the performance of soldiers operating in the Vetronics Testbed Technology (VTT), a human performance model of operator processes and tasks was developed. The purpose of this effort was to gather insight into operator workload constraints, points of operator overload due to task demands, and key decision-making points and strategies employed by the operators. Operator performance was modeled when the operators were confronted with the task of controlling multiple experimental unmanned ground vehicles (XUV) in addition to performing standard Command and Control (C2) operations. The model was built using the Improved Performance Research Integration Tool (IMPRINT). Development began with a task decomposition of the current VTT system and operator control unit (OCU) and was decomposed to the button-push level of operator interaction with the unit. Next, several operational scenarios were developed to drive the simulated operator actions in the OCU and obtain measures of performance. Finally, a decision-making architecture was implemented in the model to examine points where intelligent agents and system automation could potentially aid in reducing operator cognitive demands.

Author(s):  
H. Golan ◽  
A. Parush ◽  
E. Jaffe

Using a simulated Emergency Medical Services (EMS) dispatch center during multi-casualty incident management, this study explored whether the presence of a separate situation display in a Command and Control (C2) setting might require attention at the expense of attending an individual task display, and how it influenced performance and situational awareness. Overall, participants always attended the task display more than the situation display. However, the situation display drew attention at the expense of attending less the task display. The presence of the situation display was related to improved performance and better situational awareness (SA), particularly in the projection level of the SA, which could account also for the better decision-making performance. Participants may have developed an attention allocation strategy to effectively utilize the information of the situation display and execute their tasks on the task display.


Author(s):  
Timothy P. Hanratty ◽  
E. Allison Newcomb ◽  
Robert J. Hammell II ◽  
John T. Richardson ◽  
Mark R. Mittrick

Data for military intelligence operations are increasing at astronomical rates. As a result, significant cognitive and temporal resources are required to determine which information is relevant to a particular situation. Soft computing techniques, such as fuzzy logic, have recently been applied toward decision support systems to support military intelligence analysts in selecting relevant and reliable data within the military decision making process. This article examines the development of one such system and its evaluation using a constructive simulation and human performance model to provided critical understanding of how this conceptual information system might interact with personnel, organizational, and system architectures. In addition, similarities between military intelligence analysts and cyber intelligence analysts are detailed along with a plan for transitioning the current fuzzy-based system to the cyber security domain.


1975 ◽  
Vol 19 (3) ◽  
pp. 315-320
Author(s):  
Thomas J. Hammell ◽  
Alan J. Pesch ◽  
William P. Lane

A technique has been developed to'provide measurement of tactical decision-making performance. A comprehensibe mathematical model of the system provides an estimate of the system's effectiveness with regard to accomplishing specific interim and ultimate training and tactical objectives. The effectiveness estimate is based on particular system and situation parameters. The relationship between the operator/trainee's behavior and changes in the system parameters enables the system effectiveness values to provide a relative measure of human performance.


2012 ◽  
Vol 108 (12) ◽  
pp. 3416-3423 ◽  
Author(s):  
Joshua I. Sanders ◽  
Adam Kepecs

The mouse is an important model system for investigating the neural circuits mediating behavior. Because of advances in imaging and optogenetic methods, head-fixed mouse preparations provide an unparalleled opportunity to observe and control neural circuits. To investigate how neural circuits produce behavior, these methods need to be paired with equally well-controlled and monitored behavioral paradigms. Here, we introduce the choice ball, a response device that enables two-alternative forced-choice (2AFC) tasks in head-fixed mice based on the readout of lateral paw movements. We demonstrate the advantages of the choice ball by training mice in the random-click task, a two-choice auditory discrimination behavior. For each trial, mice listened to binaural streams of Poisson-distributed clicks and were required to roll the choice ball laterally toward the side with the greater click rate. In this assay, mice performed hundreds of trials per session with accuracy ranging from 95% for easy stimuli (large interaural click-rate contrast) to near chance level for low-contrast stimuli. We also show, using the record of individual paw strokes, that mice often reverse decisions they have already initiated and that decision reversals correlate with improved performance. The choice ball enables head-fixed 2AFC paradigms, facilitating the circuit-level analysis of sensory processing, decision making, and motor control in mice.


Fuzzy Systems ◽  
2017 ◽  
pp. 1150-1182
Author(s):  
Timothy P. Hanratty ◽  
E. Allison Newcomb ◽  
Robert J. Hammell II ◽  
John T. Richardson ◽  
Mark R. Mittrick

Data for military intelligence operations are increasing at astronomical rates. As a result, significant cognitive and temporal resources are required to determine which information is relevant to a particular situation. Soft computing techniques, such as fuzzy logic, have recently been applied toward decision support systems to support military intelligence analysts in selecting relevant and reliable data within the military decision making process. This article examines the development of one such system and its evaluation using a constructive simulation and human performance model to provided critical understanding of how this conceptual information system might interact with personnel, organizational, and system architectures. In addition, similarities between military intelligence analysts and cyber intelligence analysts are detailed along with a plan for transitioning the current fuzzy-based system to the cyber security domain.


1980 ◽  
Vol 24 (1) ◽  
pp. 54-58 ◽  
Author(s):  
Yee-Yeen Chu ◽  
William H. Crooks

Automated Remote Manipulation is a prime example of a new type of man-machine interaction in which the human operator must supervise and control a complex and often adaptive man-computer system. Computerized control offers the possibilities of improved performance speed and reduced operator work loads with teleoperator systems. Computers can be used at various levels of control, ranging from control augmentation, where the computer performs difficult coordinate transformations which simplify operator control requirements, through complete autonomy in which the computer performs all of the required activities with no intervention by the operator. However, with the introduction of computer-based control techniques, the communication between the operator and the teleoperator becomes an important determinant of work system performance. Rather than controlling directly every action of the manipulator, the operator of a computer-controlled manipulator plans the tasks, commands goal-directed actions, monitors task performance, and intervenes when appropriate. This paper describes an analytical and experimental study conducted by Perceptronics to investigate the effectiveness of command language structures and the methods for providing feedback information through the use of sensors and displays. The study showed that computer aiding can significantly decrease task performance time for a number of teleoperator tasks. The results also indicated that if high-level computer aiding schemes are to be effective, the design of interface and feedback display must be carefully performed to achieve simple and natural man-machine communication.


2012 ◽  
Vol 462 ◽  
pp. 743-747 ◽  
Author(s):  
Yun Xu Shi

The modular design of restaurant service autonomous mobile robot control system has been done, and the system adopted distributed control, the control system of the host (such as computer module) through the unity of the bus and protocols for coordination of each module. The control system distributed in the three modules of the power and driver module (including power management unit, motion control unit, and drive unit), the sensor module (various sensors, etc.), and control computer modules. Then, using VC++ 6.0 developed the software of the control system, and the software is divided into user-level, decision making control layer, sensing/underlying decision making, and movement execution layer. Communication between layers and layers are standard physical layer and protocol layer, so each layer has a highly scalable, the user is free to increase the user's own equipment and control procedures just in accordance with the standard physical layer and protocol specification.


2005 ◽  
Vol 24 (4, Suppl) ◽  
pp. S106-S110 ◽  
Author(s):  
Kevin D. McCaul ◽  
Ellen Peters ◽  
Wendy Nelson ◽  
Michael Stefanek

2012 ◽  
Vol 2012 (1) ◽  
pp. 163-192
Author(s):  
Sonja Rinofner-Kreidl

Autonomy is associated with intellectual self-preservation and self-determination. Shame, on the contrary, bears a loss of approval, self-esteem and control. Being afflicted with shame, we suffer from social dependencies that by no means have been freely chosen. Moreover, undergoing various experiences of shame, our power of reflection turns out to be severly limited owing to emotional embarrassment. In both ways, shame seems to be bound to heteronomy. This situation strongly calls for conceptual clarification. For this purpose, we introduce a threestage model of self-determination which comprises i) autonomy as capability of decision-making relating to given sets of choices, ii) self-commitment in terms of setting and harmonizing goals, and iii) self-realization in compliance with some range of persistently approved goals. Accordingly, the presuppositions and distinctive marks of shame-experiences are made explicit. Within this framework, we explore the intricate relation between autonomy and shame by focusing on two questions: on what conditions could conventional behavior be considered as self-determined? How should one characterize the varying roles of actors that are involved in typical cases of shame-experiences? In this connection, we advance the thesis that the social dynamics of shame turns into ambiguous positions relating to motivation, intentional content,and actors’ roles.


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