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- Neurophysiological markers of the duration of focused observation
- Buikin S.V., Vorontsov D.B., Adeeva T.N., Golitsina S.S., Shishova Ni.G. Neurophysiological markers of the duration of focused observation Vestnik of Kostroma State University. Series: Pedagogy. Psychology. Sociokinetics, 2026, vol. 32, no. 1, pp. 134-143. https://doi.org/10.34216/2073-1426-2026-32-1-134-143
- DOI: https://doi.org/10.34216/2073-1426-2026-32-1-134-143
- УДК: 159.93
- EDN: QISDOQ
- Publish date: 2025-12-24
- Annotation: The duration of focused attention is a critical cognitive process that determines the effectiveness of an activity. The present study is aimed at identifying neurophysiological markers of sustained attention and their relationship to the type of cognitive load. The study involved 155 healthy volunteers aged 18 to 65 years (average age 32.4 ± 12.8 years, 78 women, 77 men) who performed two cognitive tasks of different modalities: the visual Landolt test (15 minutes) and the auditory correction test (6 minutes). At the same time, an electroencephalogram was recorded using a 6-channel NeuroPlay-6C system with Fp1, Fp2, T3, T4, O1, O2 electrodes placed according to the international 10-20 system. Analysis of the spectral characteristics of the EEG revealed that the duration of focused observation is directly related to the dynamics of the power of theta, alpha and beta rhythms in various cortical leads. It was found that when performing a visual task, there is an increase in theta rhythm power in the occipital regions (O1, O2), accompanied by a decrease in beta activity in the temporal leads (T3, T4), which correlates with an increase in reaction time and a decrease in accuracy. An increase in the frontal theta rhythm (Fp1, Fp2) and a change in alpha activity in the parietotemporal regions were detected during auditory loading.
- Keywords: electroencephalography, cognitive load, long-term focused observation, focused attention, Landolt test, auditory test, neuromarkers.
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