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FURTHER EXPERIMENTS ON HUMAN OPERATORS IN COMPENSATORY TRACKING TASKS

NORTH, J. D. ; LOMNICKI, Z. A.

Ergonomics, 1961-10, Vol.4 (4), p.339-353 [Periódico revisado por pares]

London: Taylor & Francis Group

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  • Título:
    FURTHER EXPERIMENTS ON HUMAN OPERATORS IN COMPENSATORY TRACKING TASKS
  • Autor: NORTH, J. D. ; LOMNICKI, Z. A.
  • É parte de: Ergonomics, 1961-10, Vol.4 (4), p.339-353
  • Descrição: Three experiments on control sensitivity in compensatory tracking tasks are reported using the same apparatus as that used by North et al. (1958). The results of the first experiment confirmed the findings of those previously described by North et al. on the influence of changing control sensitivities On the accuracy of performance; this experiment differed from that previously reported in the application of two different targets composed of the same harmonics with changed phases instead of one. In the second experiment the way was studied in which the varying magnification of display and the varying control sensitivity jointly influenced accuracy. In the third experiment tracking with isometric controls was investigated: in this type of control the error is compensated not by the free movements of the handle, but by the operator's exerting varying forces on the controls with practically no handle movements. Performance with this type of control under these particular experimental conditions was found to be superior to that with isotonic controls. In all three experiments effects of learning were studied as well as performance when learning appeared to be more or less complete. An interesting case of transfer of skill over a period of a year without intervening practice was found.
  • Editor: London: Taylor & Francis Group
  • Idioma: Inglês
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  • Realização: ABCD-USP USP   Logos de Redes Sociais: Freepik

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