Alpha-Band Functional Connectivity During Modality-Specific Anticipatory Attention in Children Aged 9–10 Years: EEG-Source Coherence Analysisстатья
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Дата последнего поиска статьи во внешних источниках: 23 сентября 2021 г.
Аннотация:Functional connectivity was studied in a group of 17 right-handed children aged 9.789 ± 0.447 years during the deployment of cued anticipatory attention. Participants performed visual and auditory versions of the temporal order judgment task. Prestimulus functional links were assessed via alpha band coherence computed in the source space for preselected regions of interest. As compared with the baseline condition, an increase of local functional links between the primary visual cortex and the intraparietal cortex was observed in both hemispheres during the anticipation of visual and auditory stimuli. An increase of functional interaction between the intraparietal cortex and the ventral premotor cortex was observed only in the left hemisphere during auditory anticipatory attention. Unlike our previous research on anticipatory attention in adults, the analysis of functional connectivity in children showed no frontoparietal functional links in the right hemisphere and no modality-specific cortical links. The results of the study suggest that the brain’s top-down modulatory systems of the right hemisphere are still immature in children aged 9–10 years. Keywords: alpha rhythm, children aged 9–10 years, functional connectivity, cued anticipatory attention, EEG