12,741 research outputs found

    Effects of noise upon human information processing

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    Studies of noise effects upon human information processing are described which investigated whether or not effects of noise upon performance are dependent upon specific characteristics of noise stimulation and their interaction with task conditions. The difficulty of predicting noise effects was emphasized. Arousal theory was considered to have explanatory value in interpreting the findings of all the studies. Performance under noise was found to involve a psychophysiological cost, measured by vasoconstriction response, with the degree of response cost being related to scores on a noise annoyance sensitivity scale. Noise sensitive subjects showed a greater autonomic response under noise stimulation

    Human information processing during acute insulin-induced hypoglycaemia

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    Composite Data from Centrifugal Experimentation Regarding Human Information Processing

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    A cognitive model illustrating decrement in human performance as a function of increased G-forces has been highly sought after by the Department of Defense (DoD) for various reasons. The F-16 and other air combat platforms are super-agile aircraft that are easily capable of imposing G-forces on a pilot that are beyond human physiological limitations. Knowledge of these physiological limits and more importantly the resultant restrictions in cognitive function could prove invaluable to those who design and pilot such aircraft. The model may be utilized in the construction of improved flight simulators that incorporate more realistically performing enemy targets and therefore enhance the training of the air warfighter. Command and control functions may also benefit from a thorough understanding of the boundaries of human cognition in these dynamic environments. NTI is a research firm based in Fairborn, Ohio that has formulated just such a model. NTI has devised this model while contracted by the USAF Air Force Research Laboratory (AFRL) under a Phase II Small Business Innovation Research (SBIR) grant. The three primary principles that are employed in the NTI models\u27 construction are the T-matrix, a previously developed G-effective model and the G-Performance Assessment Simulation System (G-PASS) battery of tests. The T-Matrix concept has been developed emulating the Educational Testing Service (ETS) Q-Matrix with the exception that it is based on cognitive tests as an alternative to interview questions. The G-Effective Model is based on the fact that human performance is not decremented by increased G-Forces encountered by the air warfighter instantaneously. Rather, a decrease in performance is the result of a subsequent reduction in cerebral blood flow that is in turn affected by both the G-profile as well as the onset rate of imposed G-forces. The G-PASS battery of tests is intended to be performed in the Dynamic Environment Simulator (DES) human centrifuge at the Air Force Research Laboratories (AFRL) Human Effectiveness Protectorate-G (HEPG) located at Wright Patterson Air Force Base. These tests are utilized to probe critical cognitive functions that are essential to pilots of combat aircraft. Results of a descriptive comparison of the NTI model versus the composite data obtained from the DES experimental results are presented in this thesis. Results show that the decrement of cognitive function as a result of increased Gz forces obtained in the HEPG experiments is consistently lower than what is predicted by the NTI model. These results may be partially accounted for by the fact that the NTI model is based on relaxed G conditions, whereas the DES experimentation was performed utilizing G-suits, positive pressure breathing and straining maneuvers

    On the analysis and design of human information processing organizations

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    "October 1985."Bibliography: leaf 6." ONR/N00014-77-C-0532 (NR 041-519)" " ONR/N00014-84-K0519 (NR 649-003)."Kevin L. Boettcher, Robert R. Tenney

    Human information processing research in auditing A review and synthesis

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    https://egrove.olemiss.edu/dl_proceedings/1144/thumbnail.jp

    Neurocognitive Informatics Manifesto.

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    Informatics studies all aspects of the structure of natural and artificial information systems. Theoretical and abstract approaches to information have made great advances, but human information processing is still unmatched in many areas, including information management, representation and understanding. Neurocognitive informatics is a new, emerging field that should help to improve the matching of artificial and natural systems, and inspire better computational algorithms to solve problems that are still beyond the reach of machines. In this position paper examples of neurocognitive inspirations and promising directions in this area are given
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