Studies on eight essentially healthy volunteers showed that increases in activation levels were seen, particularly in the central areas of the cortex, during the actual performance of movements, these being accompanied by decreases in spectral power in alpha and beta frequencies. The EEG simultaneously showed increases in power in the gamma frequencies, which were most marked in in the parietal-occipital leads of the left hemisphere. Mental representations of the same movements were accompanied by additional activation of the frontal, temporal, and parietal-occipital areas, along with more marked increases in power in the gamma frequencies. A number of electrophysiological phenomena associated with the specific features of the movements performed were identified.
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Translated from Zhurnal Vysshei Nervnoi Deyatel’nosti imeni I. P. Pavlova, Vol. 60, No. 5, pp. 525–533, September–October, 2010.
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Kiroi, V.N., Vladimirskii, B.M., Aslanyan, E.V. et al. Electrographic Correlates of Actual and Imagined Movements: Spectral Analysis. Neurosci Behav Physi 42, 21–27 (2012). https://doi.org/10.1007/s11055-011-9527-1
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DOI: https://doi.org/10.1007/s11055-011-9527-1