Research of Distinctive Features of Visual Sensation of the External Situation by Operators within Observation and Information Systems

The article presents the development of the new technique for studying regularities of variations of intensity of visual sensation (sight) of an external luminous technical situation by the visual analyzer of the operator at his observation of bright objects on background with a interfering light sources. For formation of the test objects the authors have used images of ophthalmologic Landolt rings by which the estimation of distinctive properties for sight were carried in the modified variant: they were built in the form of a casual equiprobable sequence of the vertical and horizontal directions of sectional views of rings by means of the special program "Tachistoscope". Bright, round spots were used as hindrances of blaze. In this case brightnesses and the sizes of considered components in various ratios was set by computer projectors of the special lighting stand. For obtaining numerical equivalents of intensity of visual sensation new approach was accepted and approved for an assessment operability of the visual analyzer based оп computer calculation of average number of errors made by operators at visual recognition of the directions of sectional views of Landolt rings in relative to the total number of tests. It is established that intensity of operator’s sight increases sharply at reduction of brightness of Landolt rings and at growth of brightness of a hindrance. The authors have stated recommendations for decreasing the value of operator’s intensity sight to acceptable levels including using adaptive light filters.

References

[1] Khatsevich T.N. Meditsinskie opticheskie pribory. Fiziologicheskaya optika [Medical optical instruments. Physiological optics]. Novosibirsk, SGGA Publ., 2010. 135 p.

[2] Oshchepkov N.A., Lyashchukova S.M. The effect of lightening action on the visual analyzer when performing orientation of the space object by the operator. Psikhologicheskiy zhurnal [Psychol. J.], 1987, vol. 7, no. 6, pp. 46-51 (in Russ.).

[3] Chikhman V.N., Bondarko V.M., Goluzina A.G., Danilova M.V., Solnushkin S.D. Effect of environment on identification errors during crowding effect. Sensornye sistemy [Sensor Systems], 2012, vol. 26, no. 3, pp. 195-203 (in Russ.).

[4] Bondarko V.M., Danilova M.V., Solnushkin S.D., Chikhman V.N., Shelepin Yu.E. Computer support for experimental researches of visual sensation. Sb. Tr. 15 Mezhdunar. Konf po Neyrokibernetike [Proc. Int. Conf. on Neurocybernetics]. Rostov-on-Don, YuFU Publ., 2009, pp. 284-287 (in Russ.).

[5] Bondarko V.M., Semenov L.A. The influence of context on an ability to distinguish the line orientation. Sensornye sistemy [Sensor Systems], 2011, vol. 25, no. 3, pp. 257-263 (in Russ.).

[6] Maslov V.S., Rumyantsev V.G., Senova N.I., Rytsarev Yu.M. Development, creation and experimental researches of integrally adaptive light filters. Vestn. Mosk. Gos. Tekh. Univ. im. N.E. Baumana, Priborostr. [Herald of the Bauman Moscow State Tech. Univ., Instrum. Eng.], 2012, no. 3 (88), pp. 54-67 (in Russ.).

[7] Maslov V.S., Rumyantsev V.G., Senova N.I., Rytsarev Yu.M. Development of scientific and methodological bases for construction of locally adaptive light filters and their research. Vestn. Mosk. Gos. Tekh. Univ. im. N.E. Baumana, Priborostr., Spetsvyp. "Informatika i sistemy" [Herald of the Bauman Moscow State Tech. Univ., Instrum. Eng., Spec. Issue "Information Science and Systems"], 2012, no. 5, pp. 193-202 (in Russ.). Available at: http://engjournal.ru/articles/120/120.pdf (accessed 20.02.2014).

[8] Kolokolov A.S. Computing tachistoscope and simulator of attention. Nauchno-prakticheskiy zhurnal "Sovremennoe obrazovanie" [Sci. and Pract. J. "Contemporary Education"], 2003, no. 6 (75), pp. 4-7 (in Russ.).

[9] Sysoev V.N. Test Landol’ta. Diagnostika rabotosposobnosti [Landolt Test. Diagnostic working capacity]. SPb., IMATON Publ., 2003. 31 p.

[10] Strelkov Yu.K. Inzhenernaya professional’naya psikhologiya [Engineering professional psychology]. Moscow, Akademiya Publ., 2005. 360 p.