Contrast Illusion: Old Facts in a New Light

98

Abstract

The article deals with the eff ect of contrast illusion. Th is experimental fact was discovered by N. N. Uznadze, but it has not yet received proper explanation. We review classical experiments by N. N. Uznadze, where a set display was established under conditions in which conscious control is assumed. Th e procedure and the results of the experiment that tests the possibility of contrast illusion under conditions of forming a fi xed set on irrelevant stimulus (out of the attention focus) are described. Participants perceived geometrical fi gures on a screen divided into two windows. In the lefwindow there were always 20% fewer points than in the right window. Th e task for the participant was to determine in which window the presented geometrical fi gure was displayed higher in the frame. Under control conditions participants compared an equal number of points in each window. In most cases (84%) the participants were wrong. Contrast illusions were dominant (58 % of all cases). Th e proposed explanation of the contrast illusion eff ect presumes two stages of unconscious processes that precede the eff ect of the illusion, namely, the stage of parallel collation and the stage of comparison of the results of that collation.

General Information

Keywords: fixed set, contrast illusion, assimilative illusion, conscious control, collation

Journal rubric: General Psychology, Personality Psychology, History of Psychology

Article type: scientific article

For citation: Agafonov A.Y., Burmistrov S.N., Shilov Y.E. Contrast Illusion: Old Facts in a New Light. Vestnik of Saint Petersburg University. Psychology, 2016. no. 4, pp. 63–74. (In Russ., аbstr. in Engl.)

References

Matiushkin A. M. Psikhologiia myshleniia. Myshlenie kak razreshenie problemnykh situatsii [Psychology of Thinking. Thinking as Resolving of Problematic Situations]. Ed. by A. A. Matiushkin. Moscow, KDU Publ., 2009. 190 p. (In Russian)

Agafonov A. Iu. Kognitivnaia psikhomekhanika soznaniia [Cognitive Psychomechanics of Consciousness]. Samara, Bakhrakh-M Publ., 2007. 336 p. (In Russian)

Dunker K. Kachestvennoe (eksperimental’noe i teoreticheskoe) issledovanie produktivnogo myshleniia [Quality (Experimental and Theoretical) Study of Productive Thinking]. Psikhologiia myshleniia: sb. perevodov s nem. i angl. [Psychology of Thinking. The Collection of Translations from German and English]. Ed. by A. M. Matiushkin. Moscow, Progress Publ., 1965, pp. 21–86. (In Russian)

Dunker K. Psikhologiia produktivnogo (tvorcheskogo) myshleniia [Psychology of Productive (Creative) Thinking]. Psikhologiia myshleniia: sb. perevodov s nem. i angl. [Psychology of Thinking. The Collection of Translations from German and English]. Ed. by A. M. Matiushkin. Moscow, Progress Publ., 1965, pp. 86–221. (In Russian)

Uznadze D. N. Psikhologicheskie issledovaniia [Psychological Studies]. Moscow, Nauka Publ., 1966. 541 p. (In Russian)

Uznadze D. N. Psikhologiia ustanovki [Psychology of Set]. St. Petersburg, Peter Publ., 2001. 416 p. (In Russian)

Allakhverdov V. M. Soznanie kak paradoks (Eksperimental’naia psikhologika, t. 1) [Consciousness as Paradox (Experimental Psychologics. Vol. 1) ]. St. Petersburg, DNK publishing, 2000. 528 p. (In Russian)

Arbekova O. A., Gusev A. N. Vliianie ustanovok raznogo urovnia na skorost’ zritel’nogo poiska [Effects of Sets at Different Levels on the Speed of Visual Search]. Voprosy psikhologii, 2015, no. 4, pp. 147– 159. (In Russian)

Asmolov A. G. Deiatel’nost’ i ustanovka [Activity and Set]. Moscow, Moscow University Press, 1979, 150 p. (In Russian)

Grigolava V. V. Kontrastnaia illiuziia, ustanovka i bessoznatel’noe [Contrast Illusion, Set and Unconscious]. Tbilisi, Metsniereba Publ., 1987. 208 p. (In Russian)

Karpinskaia V. Iu. Pochemu my ne vidim to, chto vidim [Why Don’t We See What We See]. Samara, Samara University Press, 2015. 144 p. (In Russian)

Blazhnova I. V. Fiksirovannaia ustanovka i pertseptivnye illiuzii: v poiskakh ob”iasneniia oshibochnogo osoznaniia [Fixed Set and Perceptual Illusions: in the Search of an Explanation of Erroneous Awareness]. Po obe storony soznaniia. Eksperimental’nye issledovaniia po kognitivnoi psikhologii [From Both Sides of Consciousness. Experimental Studies on Cognitive Psychology]. Ed. by A. Iu. Agafonov. Samara, Bachrach-M Publ., 2012, pp. 162–178. (In Russian)

Information About the Authors

Andrey Y. Agafonov, Doctor of Psychology, Professor, Head of the Department of General Psychology, Deputy Dean for Scientific Work of the Faculty of Psychology of the Social Sciences and Humanities Institute, Samara National Research University, Samara, Russia, ORCID: https://orcid.org/0000-0003-1546-605X, e-mail: aa181067@yandex.ru

Sergey N. Burmistrov, Senior Lecturer of the Department of General Psychology, Samara National Research University, Samara, Russia, ORCID: https://orcid.org/0000-0002-6567-6779, e-mail: burm33@mail.ru

Y. E. Shilov, PhD in Psychology, Associate Professor of the Department of General Psychology, Samara National Research University, Samara, Russia, e-mail: sheloves@samsu.ru

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