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Evaluation of the functional state of operators with allowance for individual psychological characteristics

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Abstract

This article deals with the features of the evaluation of changes in the functional state during the professional activity of operators. We estimated the dynamics of the functional state and efficiency of operators under the effect of aircraft noise and individual psychophysiological characteristics. We also investigated changes in the functional state of operators depending on their psychological characteristics. It was found that changes in the functional state of the organism in operators with high levels of anxiety, low degrees of extraversion, and high emotional lability were more pronounced in the modeling of operator activity with exposure to aircraft noise, as evidenced by significant changes in psychophysiological parameters. After 60 minutes of noise stress, the latent period of a simple and a complex sensorimotor reaction in introverts increased by 9.1% (p < 0.05) and 8.1% (p < 0.05), respectively. In the group of subjects with high levels of anxiety, there was a decrease in the general state, activity, and mood by 18.9% (p < 0.01), 20.9%, and 14.9% (p < 0.05), respectively, and a decrease in the accuracy of reaction to a moving object by three times (p < 0.05). The latent period of simple sensorimotor reaction in emotionally labile subjects after the exercise was increased by 15% (p < 0.05), and the reaction time on a moving object was increased by 8.9% (p < 0.05) as compared with the group of emotionally stable subjects. Thus, the data suggest that changes in the functional state of operators depends on the level of extraversion, personal anxiety, and emotional lability, and does not depend on the level of behavioral regulation, which must be taken into consideration during the assessment of functional state.

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Authors and Affiliations

  1. Military Medical Academy named after S.M. Kirov, St. Petersburg, Russia

    A. A. Blaginin & S. N. Sinelnikov

  2. Pushkin Leningrad State University, St. Petersburg, Russia

    S. V. Smolyaninova

Authors
  1. A. A. Blaginin
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  2. S. N. Sinelnikov
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  3. S. V. Smolyaninova
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Correspondence to S. N. Sinelnikov.

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Original Russian Text © A.A. Blaginin, S.N. Sinelnikov, S.V. Smolyaninova, 2017, published in Fiziologiya Cheloveka, 2017, Vol. 43, No. 1, pp. 11–17.

This article was translated by the authors.

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Blaginin, A.A., Sinelnikov, S.N. & Smolyaninova, S.V. Evaluation of the functional state of operators with allowance for individual psychological characteristics. Hum Physiol 43, 7–12 (2017). https://doi.org/10.1134/S0362119716060037

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