AAWSAP DIRD, Cognitive Limits on Simultaneous Control of Multiple Unmanned Spacecraft, December 2010

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Contents
Summary................................................................................................................iv
Chapter 1: Introduction......................................................................................... 1
Chapter 2: Measurement of Mental Workload ........................................................ 3
Subjective Measurements .................................................................................. 3
Performance Measures ....................................................................................... 4
Physiological Measures ...................................................................................... 4
Cardiac Function ............................................................................................ 5
CNS Measurements ........................................................................................ 6
Ocular Measurements..................................................................................... 6
Skin Measurements ........................................................................................ 7
Serum Levels of Hormones............................................................................. 7
Chapter 3: Studies in Cognitive Workload for Air Traffic Controllers ..................... 8
Modeling the Air Traffic Control Task ............................................................... 15
Chapter 4: Studies in Command of Multiple Semi-Automated Vehicles ................ 18
Chapter 5: Discussion.......................................................................................... 22
Chapter 6: Conclusions........................................................................................ 23
References ........................................................................................................... 24
Figures
Figure 1. One-dimensional Representation of Changes in Performance as Workload
Varies ..................................................................................................................... 2
Figure 2. Typical EKG Signal for a Normal Heartbeat .............................................. 5
Figure 3. Air Traffic Control .................................................................................. 10
Figure 4. Representation of Performance Results from Brookings Study.............. 13
Figure 5. Information Processing Model for a Human Operator............................ 16
Figure 6. Examples of Unmanned Military Vehicles .............................................. 19
Tables
Table 1. Variables used in Determining Complexity of the Traffic.................. 11
Table 2. Correlations among Physiological Variables ..................................... 14
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