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Hemispheric Asymmetry in Visual Processing: An ERP Study on Spatial Frequency Gratings

EEG and fMRI Correlates of Insight: A Pilot Study

Laboratory of Psychophysiology of Individual Differences, Institute of Neuroscience and Medicine, 630117 Novosibirsk, Russia
National Research Center, Kurchatov Institute, 123098 Moscow, Russia
Institute for Advanced Brain Studies, Lomonosov Moscow State University, 119991 Moscow, Russia
National Research Nuclear University MEPhI/Institute of Cyber Intelligence Systems/Department of Cybernetics, 115409 Moscow, Russia
Mental-Health Clinic No. 1 named after N.A. Alexeev, 117152 Moscow, Russia
Author to whom correspondence should be addressed.
Academic Editor: Chiara Spironelli
Symmetry 2021, 13(2), 330;
Received: 27 December 2020 / Revised: 5 February 2021 / Accepted: 7 February 2021 / Published: 17 February 2021
(This article belongs to the Special Issue Biological Psychology: Brain Asymmetry and Behavioral Brain)
Insight is described as the sudden solution of a problem and is contrasted with an analytical, step-by-step approach. Traditionally, insight is thought to be associated with activity of the right hemisphere, whereas analytical solutions are thought to be associated with activity of the left hemisphere. However, empirical evidence as to the localization of insight-related brain activity is mixed and inconclusive. Some studies seem to confirm the traditional view, whereas others do not. Moreover, results of EEG and fMRI studies frequently contradict each other. In this study, EEG and fMRI data were recorded while subjects performed the remote association test and for each solved problem were asked to report whether the solution was reached analytically or insightfully. The data were analyzed in a 16-second fragment preceding the subject’s response. Source localization techniques were used in the analysis of EEG data. Based on EEG data, insightful as compared to analytical problem solving was accompanied by high-frequency synchronization in semantic cortical areas of the left hemisphere 10–12 s before the subject’s response. Based on fMRI data, however, insightful solutions were accompanied by increased activity in frontal and temporal regions of the right hemisphere. The results are interpreted in terms of different cognitive processes involved in insightful problem solving, which could be differently reflected in EEG and fMRI data. View Full-Text
Keywords: insight; EEG; fMRI insight; EEG; fMRI
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MDPI and ACS Style

Knyazev, G.G.; Ushakov, V.L.; Orlov, V.A.; Malakhov, D.G.; Kartashov, S.I.; Savostyanov, A.N.; Bocharov, A.V.; Velichkovsky, B.M. EEG and fMRI Correlates of Insight: A Pilot Study. Symmetry 2021, 13, 330.

AMA Style

Knyazev GG, Ushakov VL, Orlov VA, Malakhov DG, Kartashov SI, Savostyanov AN, Bocharov AV, Velichkovsky BM. EEG and fMRI Correlates of Insight: A Pilot Study. Symmetry. 2021; 13(2):330.

Chicago/Turabian Style

Knyazev, Gennady G., Vadim L. Ushakov, Vyacheslav A. Orlov, Denis G. Malakhov, Sergey I. Kartashov, Alexander N. Savostyanov, Andrey V. Bocharov, and Boris M. Velichkovsky 2021. "EEG and fMRI Correlates of Insight: A Pilot Study" Symmetry 13, no. 2: 330.

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