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Experimental Psychology (Russia)

Publisher: Moscow State University of Psychology and Education

ISSN (printed version): 2072-7593

ISSN (online): 2311-7036


License: CC BY-NC 4.0

Started in 2008

Published quarterly

Free of fees
Open Access Journal


Comparison of frequency components of EEG and skin potential (quantitative analysis) 506


Nazarov A.I.
PhD in Psychology, Associate Professor, Chair of Psychology, International University of Nature, Dubna, Russia

In the experiment, a local EEG (Fp1) and a skin potential (SP) were recorded when anagrams were tested and several test tasks were performed. The main goal was to compare the structure and dynamics of the frequency components of the local EEG and SP based on a quantitative analysis of the obtained data. With the help of frequency analysis, profiles of frequency dynamics of the total EEG and SP, as well as histograms of distributions of their frequency components, were constructed, among which six typical patterns were singled out. In the series with simultaneous registration of EEG and SP, a high positive correlation of their total signals is established (the minimax range is from 0.70 to 0.94). Along with this, in the frequency patterns of the EEG and SP, some differences in the temporal distribution of the frequency components are found with a shift in the difference of the EEG-SP towards negative values. The possible nature of the general properties of the high-frequency dynamics of the EEG and SP is discussed. The obtained data are important, in particular, when interpreting the results of experiments with the simultaneous recording of several psychophysiological indices.

Keywords: skin potential, electro-encephalogram, biorhythm, frequency analysis

Column: Psychophysiology


For Reference

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  2. Nagai Y., Critchley H.D., Featherstone E., Trimble M.R., Dolan R.J. Activity in ventromedial prefrontal cortex covaries with sympathetic skin conductance level: a physiological account of a “default mode” of brain function. NeuroImage, 2004, vol. 22, no. 1, pp. 243—251. doi: 10.1016/j.neuroimage.2004.01.019
  3. Nazarov A.I. Sravnenie chastotnyh komponent ehlektrokozhnoj aktivnosti i EEG (kachestvennyj analiz) [Comparing frequency components of EEG (qualitative analysis)]. Eksperimental’naya psihologiya [Experimental Psychology], 2017, vol. 10, no. 2, pp. 104—113. (In Russ.). doi:10.17759/exppsy.2017100209.

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