Differences in event-related and induced brain oscillations in the theta and alpha frequency bands related to human intelligence.
High (intelligence quotient (IQ)=126) and low intelligent individuals (IQ=88) were listening to tone pips and performed an auditory oddball task while their electroencephalogram was recorded. Significant differences relating to intelligence were observed in induced and event related band power in the theta (4-7 Hz) and upper alpha band (10-13 Hz). In the oddball task high intelligent individuals displayed less theta synchronization and more synchronization in the upper alpha band. The results were explained by the more efficient engagement of neural networks in more intelligent individuals.
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Univerza v Mariboru, Pedagoska Fakulteta, Koroska 160, 2000, Maribor, Slovenia. norbert.jausovec@uni-mb.si
Jausovec
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D000328:Adult; D000513:Alpha Rhythm; D001921:Brain / Q000502:physiology*; D004585:Electrooculography; D005071:Evoked Potentials / Q000502:physiology*; D005625:Frontal Lobe / Q000502:physiology; D006801:Humans; D007360:Intelligence / Q000502:physiology*; D007361:Intelligence Tests; D008959:Models, Neurological; D009415:Nerve Net / Q000502:physiology; D012815:Signal Processing, Computer-Assisted; D013826:Theta Rhythm