The sensitivity of cognitive processes to the inhomogeneity of natural magnetic fields

K. Nikolskaya, V. Shtemler, O. Yeschenko, Alena Savonenko, A. Osipov, S. Nickolsky

Research output: Contribution to journalArticle

Abstract

Three experiments were carried out to study the influence of inhomogeneity of natural magnetic field (MF) on animal cognition. Wistar rats (n = 90) were placed in a complicated problem environment, in which they were to form food-operant behavior under conditions of natural MF (Cond. 1) and MFs produced by iron objects (Cond. 2) or by magnets (Cond. 3). Unlike the control group (Cond. 1), all rats in Cond. 2 and 3 were unable to form operant behavior. Weak MF caused both locomotor and emotional depression, and there was no exploratory activity shown during 6 sessions. Brief external stimulation removed locomotor depression, and animals formed operant behavior similar to latent learning (Cond. 2) or "insight" (Cond. 3). Performance efficiency was lower while the level of stress manifestation was higher in Cond. 2 and 3 than in the control at the stage of stabilization. It has been proposed that MF reduces the activity of brain motivation centers and prevents the development of complicated forms of cognitive activity.

Original languageEnglish (US)
Pages (from-to)163-174
Number of pages12
JournalElectro- and Magnetobiology
Volume15
Issue number3
StatePublished - 1996
Externally publishedYes

Fingerprint

Magnetic Fields
magnetic fields
cognition
mental depression
Magnets
rats
Cognition
Wistar Rats
Motivation
learning
Iron
Learning
iron
Depression
Efficiency
brain
Food
Control Groups
Brain
animals

Keywords

  • Behavior modification
  • Cognition
  • Geomagnetic fields
  • Operant conditioning
  • Rats
  • Static magnetic fields

ASJC Scopus subject areas

  • Agricultural and Biological Sciences (miscellaneous)
  • Biophysics

Cite this

Nikolskaya, K., Shtemler, V., Yeschenko, O., Savonenko, A., Osipov, A., & Nickolsky, S. (1996). The sensitivity of cognitive processes to the inhomogeneity of natural magnetic fields. Electro- and Magnetobiology, 15(3), 163-174.

The sensitivity of cognitive processes to the inhomogeneity of natural magnetic fields. / Nikolskaya, K.; Shtemler, V.; Yeschenko, O.; Savonenko, Alena; Osipov, A.; Nickolsky, S.

In: Electro- and Magnetobiology, Vol. 15, No. 3, 1996, p. 163-174.

Research output: Contribution to journalArticle

Nikolskaya, K, Shtemler, V, Yeschenko, O, Savonenko, A, Osipov, A & Nickolsky, S 1996, 'The sensitivity of cognitive processes to the inhomogeneity of natural magnetic fields', Electro- and Magnetobiology, vol. 15, no. 3, pp. 163-174.
Nikolskaya K, Shtemler V, Yeschenko O, Savonenko A, Osipov A, Nickolsky S. The sensitivity of cognitive processes to the inhomogeneity of natural magnetic fields. Electro- and Magnetobiology. 1996;15(3):163-174.
Nikolskaya, K. ; Shtemler, V. ; Yeschenko, O. ; Savonenko, Alena ; Osipov, A. ; Nickolsky, S. / The sensitivity of cognitive processes to the inhomogeneity of natural magnetic fields. In: Electro- and Magnetobiology. 1996 ; Vol. 15, No. 3. pp. 163-174.
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