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Abstract <p>Alpha-band functional connectivity was studied in a group of 20 adolescents (10 female) aged 14.2&#xa0;± 1.1 years during the period preceding selective responses (proactive attention) to rare visual or auditory stimuli and during the period preceding the selective inhibition of responses (proactive inhibitory control) to visual or auditory stimuli. Participants performed a modified version of the Go/NoGo task, in which paired combinations of the graphemes/phonemes “AX,” “AK,” and “OC” (in Russian) were used as stimuli. The experimental design included four experimental conditions: proactive selective attention to rare visual (Go<sub>V</sub>) or auditory (Go<sub>A</sub>) stimuli, and proactive selective inhibition of responses to rare visual (NoGo<sub>V</sub>) or auditory (NoGo<sub>A</sub>) stimuli. Prestimulus functional connectivity was assessed via the weighted phase lag index (wPLI) computed in the source space for preselected regions of interest. In the NoGo<sub>A</sub> condition, proactive inhibitory control was accompanied by functional interactions between the intraparietal cortex and the lateral prefrontal cortex in the left hemisphere (nodes of the frontoparietal attention network), as well as between the frontal eye field and the primary visual cortex in the right hemisphere. Proactive selective attention was accompanied by the involvement of either the primary auditory or primary visual cortex, depending on the anticipated sensory modality. The results are discussed in terms of the functional role of alpha-band oscillations in the selective integration of cortical areas in preparation for the processing of sensory-specific information.</p>

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Alpha-Band Functional Connectivity during Proactive Attention versus Proactive Inhibitory Control in Adolescents Aged 13–15 Years: a High-Density EEG Study

  • 期刊论文

  • 发表日期：

    2025年12月1日

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  • I. V. Talalay,
  • R. I. Machinskaya

摘要

Abstract

Alpha-band functional connectivity was studied in a group of 20 adolescents (10 female) aged 14.2 ± 1.1 years during the period preceding selective responses (proactive attention) to rare visual or auditory stimuli and during the period preceding the selective inhibition of responses (proactive inhibitory control) to visual or auditory stimuli. Participants performed a modified version of the Go/NoGo task, in which paired combinations of the graphemes/phonemes “AX,” “AK,” and “OC” (in Russian) were used as stimuli. The experimental design included four experimental conditions: proactive selective attention to rare visual (GoV) or auditory (GoA) stimuli, and proactive selective inhibition of responses to rare visual (NoGoV) or auditory (NoGoA) stimuli. Prestimulus functional connectivity was assessed via the weighted phase lag index (wPLI) computed in the source space for preselected regions of interest. In the NoGoA condition, proactive inhibitory control was accompanied by functional interactions between the intraparietal cortex and the lateral prefrontal cortex in the left hemisphere (nodes of the frontoparietal attention network), as well as between the frontal eye field and the primary visual cortex in the right hemisphere. Proactive selective attention was accompanied by the involvement of either the primary auditory or primary visual cortex, depending on the anticipated sensory modality. The results are discussed in terms of the functional role of alpha-band oscillations in the selective integration of cortical areas in preparation for the processing of sensory-specific information.