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  • 1
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    Display strobing: An effective countermeasure against visual blur from whole-body vibration (2013)
    Elsevier
    Details
    Publication Date: 2013-11-01
    Print ISSN: 0094-5765
    Electronic ISSN: 1879-2030
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Published by Elsevier
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    PAPER CURRENT
  • 2
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    A high performance two degree-of-freedom kinesthetic interface (1991)
    In:  CASI
    Details
    Publication Date: 2013-08-31
    Description: This summary focuses on the kinesthetic interface of a virtual environment system that was developed at the Newman Laboratory for Biomechanics and Human Rehabilitation at M.I.T. for the study of manual control in both motorically impaired and able-bodied individuals.
    Keywords: MAN/SYSTEM TECHNOLOGY AND LIFE SUPPORT
    Type: NASA. Ames Research Center, Human Machine Interfaces for Teleoperators and Virtual Environments; p 108-113
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 3
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    Manual control interfaces for the tremor-disabled (1983)
    In:  CASI
    Details
    Publication Date: 2019-06-28
    Keywords: MAN/SYSTEM TECHNOLOGY AND LIFE SUPPORT
    Type: Nineteenth Annual Conference on Manual Control 275-296 (SEE N89-70518 12-54)
    Format: text
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    NASA TECHNICAL REPORTS
  • 4
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    Time Counts! Some Comments on System Latency in Head-Referenced Displays (2013)
    In:  CASI
    Details
    Publication Date: 2019-07-13
    Description: System response latency is a prominent characteristic of human-computer interaction. Laggy systems are; however, not simply annoying but substantially reduce user productivity. The impact of latency on head referenced display systems, particularly head-mounted systems, is especially disturbing since not only can it interfere with dynamic registration in augmented reality displays but it also can in some cases indirectly contribute to motion sickness. We will summarize several experiments using standard psychophysical discrimination techniques that suggest what system latencies will be required to achieve perceptual stability for spatially referenced computer-generated imagery. In conclusion I will speculate about other system performance characteristics that I would hope to have for a dream augmented reality system.
    Keywords: Man/System Technology and Life Support
    Type: ARC-E-DAA-TN11711 , IHS Interactive Technology Summit; Oct 22, 2013 - Oct 25, 2013; San Jose, CA; United States
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 5
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    Misalignment Effect Function Measurement for Oblique Rotation Axes: Counterintuitive Predictions and Theoretical Extensions (2013)
    In:  CASI
    Details
    Publication Date: 2019-07-13
    Description: The Misalignment Effect Function (MEF) describes the decrement in manual performance associated with a rotation between operators' visual display frame of reference and that of their manual control. It now has been empirically determined for rotation axes oblique to canonical body axes and is compared with the MEF previously measured for rotations about canonical axes. A targeting rule, called the Secant Rule, based on these earlier measurements is derived from a hypothetical process and shown to describe some of the data from three previous experiments. It explains the motion trajectories determined for rotations less than 65deg in purely kinematic terms without the need to appeal to a mental rotation process. Further analysis of this rule in three dimensions applied to oblique rotation axes leads to a somewhat surprising expectation that the difficulty posed by rotational misalignment should get harder as the required movement is shorter. This prediction is confirmed. Geometry underlying this rule also suggests analytic extensions for predicting more generally the difficulty of making movements in arbitrary directions subject to arbitrary misalignments.
    Keywords: Man/System Technology and Life Support; Cybernetics, Artificial Intelligence and Robotics
    Type: ARC-E-DAA-TN8043 , International Annual Meeting of the Human Factors and Ergonomics Society; Sep 30, 2013 - Oct 04, 2013; San Diego, CA; United States
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 6
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    Evaluation of Human and AutomationRobotics Integration Needs for Future Human Exploration Missions (2016)
    In:  CASI
    Details
    Publication Date: 2019-07-13
    Description: NASA employs Design Reference Missions (DRMs) to define potential architectures for future human exploration missions to deep space, the Moon, and Mars. While DRMs to these destinations share some components, each mission has different needs. This paper focuses on the human and automation/robotic integration needs for these future missions, evaluating them with respect to NASA research gaps in the area of space human factors engineering. The outcomes of our assessment is a human and automation/robotic (HAR) task list for each of the four DRMs that we reviewed (i.e., Deep Space Sortie, Lunar Visit/Habitation, Deep Space Habitation, and Planetary), a list of common critical HAR factors that drive HAR design.
    Keywords: Man/System Technology and Life Support; Ground Support Systems and Facilities (Space)
    Type: ARC-E-DAA-TN27422 , IEEE Aerospace Conference; Mar 05, 2016 - Mar 12, 2016; Big Sky, MT; United States
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 7
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    Project Review: Teleoperation and Time Delays (2013)
    In:  CASI
    Details
    Publication Date: 2019-07-13
    Description: We plan to study the invariance in the shift in control strategy from continuous control to move-and-wait as a function of latency and control difficulty. To do so we have developed a theoretically understood way of introducing measurable levels of control difficulty using misalignment between display and control axes . We now use this understanding to study the interaction of control difficulty and system latency. We have conducted an experiment to calibrate our imposition of control difficulty using more representative control rotations. We use these levels of difficulty to directly study the interaction of control difficulty with latency. Results suggest a way to generalize latency requirements across control difficulties that should aid establishment of standards for managing latency in teleoperation.
    Keywords: Man/System Technology and Life Support
    Type: ARC-E-DAA-TN7884 , NASA Human Research Program Investigators Workshop; Feb 12, 2013 - Feb 14, 2013; Galveston, TX; United States
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 8
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    Discontinuity Detection for Analysis of Telerobot Trajectories (2013)
    In:  CASI
    Details
    Publication Date: 2019-07-13
    Description: To identify spatial and temporal discontinuities in telerobot movement in order to describe the shift in operators control and error correction strategies from continuous control to move-and-wait strategies. This shift was studied under conditions of simulated increasingly time-delayed teleoperation. The ultimate goal is to determine if the time delay associated with the shift is invariant with independently imposed control difficulty. We expect this shift to manifest itself as changes in the number of discontinuity of movement path. We proposed an approach to spatial and temporal discontinuity detection algorithm for analysis of teleoperated trajectory in three dimensional space. The algorithm provides a simple and potentially objective method for detecting the discontinuity during telerobot operation and evaluating the difficulty of rotational coordinate condition in teleoperation.
    Keywords: Cybernetics, Artificial Intelligence and Robotics
    Type: ARC-E-DAA-TN7892 , NASA Human Research Program Investigators Workshop; Feb 12, 2013 - Feb 14, 2013; Galveston, TX; United States
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 9
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    Future Exploration Missions' Tasks Associated with the Risk of Inadequate Design of Human and Automation/Robotic Integration (2017)
    In:  CASI
    Details
    Publication Date: 2019-07-12
    Description: NASA's Human Research Program (HRP) funds research efforts aimed at mitigating various human health and performance risks, including the Risk of Inadequate Design of Human and Automation/Robotic Integration (HARI). As such, within HRP, the Human Factors and Behavioral Performance (HFBP) Element tasked an evaluation of future HARI needs in order to scope and focus the HARI risk research plan. The objective was to provide a systematic understanding of the critical factors associated with effective HARI that will be necessary to achieve the future mission goals for near- and deep-space exploration. Future mission goals are specified by NASA Design Reference Missions (DRMs) that are pertinent to the HRP. The outcome of this evaluation is a set of NASA-relevant HARI tasks, factors, and interactions required for exploration-class missions.
    Keywords: Man/System Technology and Life Support
    Type: NASA/TM-2017-219516 , ARC-E-DAA-TN40802
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 10
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    Effects of Transverse Seat Vibration on Near-Viewing Readability of Alphanumeric Symbology (2009)
    In:  CASI
    Details
    Publication Date: 2019-07-20
    Description: We measured the impacts on human visual function of a range of vibration levels (0.15, 0.3, 0.5, and 0.7 g) at the frequency and along the axis of the anticipated Ares thrust oscillation. We found statistically significant and equivalent decrements in performance on a reading and a numeric processing task at tested vibration levels above 0.3 g (0-to-peak), but no evidence of after-effects. At the smallest font and highest vibration level tested, the average effect was a 50 percent increase in response time and six-fold increase in errors. Our findings support a preliminary trade space in which currently planned Orion font sizes and text spacing appear to be too small to support accurate and efficient reading at the tested vibration levels above 0.3 g, but not too small to support reading at 0.3 g. This study does not address potential impacts on crew cognitive decision-making or motor control and does not test either the full induced Orion-Ares environment with its sustained Gx-loading or the full complexity of the final Orion seat-helmet-suit interface. A final determination of the Orion-Ares program limit on vibration must take these additional factors into consideration and, thus, may need to be lower than that needed to support effective reading at 1-Gx bias.
    Keywords: Aerospace Medicine; Spacecraft Instrumentation and Astrionics
    Type: NASA/TM-2009-215385 , ARC-E-DAA-TN17186
    Format: application/pdf
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    NASA TECHNICAL REPORTS
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