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[Change in the human electroencephalogram during brief mental loads]. 1978

V V Gorbunov, and V V Sirotskiĭ, and N V Makarenko

Frequency-amplitude characteristics of EEG beta-, alpha-, theta- and delta-rhythms were studied in 33 male subjects with different maximal velocity of effective processing of visual information. Dosed mental load enhanced the total activity of EEG frequency components of parieto-occipital parts of the brain. The most substantial changes were revealed in the delta-rhythm range. A statistically significant correlative connection was found between integrative amplitude values of EEG slow rhythms and success in performing mental tasks. The higher the maximal velocity of effective processing of visual information, the greater the magnitudes of theta- and beta-activity. No statistically significant connection has been revealed between the maximal velocity of effective processing of visual information and the frequency-amplitude EEG characteristics before and after mental loads.

UI MeSH Term Description Entries
D008297 Male Males
D011930 Reaction Time The time from the onset of a stimulus until a response is observed. Response Latency,Response Speed,Response Time,Latency, Response,Reaction Times,Response Latencies,Response Times,Speed, Response,Speeds, Response
D001921 Brain The part of CENTRAL NERVOUS SYSTEM that is contained within the skull (CRANIUM). Arising from the NEURAL TUBE, the embryonic brain is comprised of three major parts including PROSENCEPHALON (the forebrain); MESENCEPHALON (the midbrain); and RHOMBENCEPHALON (the hindbrain). The developed brain consists of CEREBRUM; CEREBELLUM; and other structures in the BRAIN STEM. Encephalon
D004569 Electroencephalography Recording of electric currents developed in the brain by means of electrodes applied to the scalp, to the surface of the brain, or placed within the substance of the brain. EEG,Electroencephalogram,Electroencephalograms
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000328 Adult A person having attained full growth or maturity. Adults are of 19 through 44 years of age. For a person between 19 and 24 years of age, YOUNG ADULT is available. Adults
D013997 Time Factors Elements of limited time intervals, contributing to particular results or situations. Time Series,Factor, Time,Time Factor
D014705 Verbal Behavior Includes both producing and responding to words, either written or spoken. Behavior, Verbal,Behaviors, Verbal,Verbal Behaviors
D014796 Visual Perception The selecting and organizing of visual stimuli based on the individual's past experience. Visual Processing,Perception, Visual,Processing, Visual

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