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<p>The functional organization of working memory (WM) was studied by analysis of event-related potentials (ERP) arising in response to imperative auditory signals during delayed motor reproduction of visuospatial (broken lines) and letter sequences in children aged 10–12 years (<i>n</i> = 28, 14 girls). The retention time of reference sequences (500 msec or 3000 msec) and the method of presentation (static or dynamic) were varied. Specific changes in the magnitudes of the positive ERP components P200 and P300 for verbal and non-verbal sequences were found when the mode of presentation and retention time in WM were varied. The results obtained here, along with data from a previous study involving adult subjects [Kurgansky et al., 2022], support the view that the neural basis of representations of sequentially organized information during its storage in WM undergoes transformations which are apparent as activation of the anterior and posterior associative cortical areas as the delay time of the imperative signal increases. The age specificity of the functional organization of WM during retention of sequences in children aged 10–12 years is seen as predominance of the involvement of the cortical areas of the left hemisphere during retention of both visuospatial and verbal information.</p>

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Functional Organization of Working Memory during Delayed Reproduction of Verbal and Visuospatial Sequences in Children Aged 10–12 Years. Analysis of ERP in Response to Imperative Signals

  • 期刊论文

  • 发表日期：

    2025年6月1日

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  • R. I. Machinskaya,
  • A. A. Korneev,
  • A. V. Kurgansky,
  • D. I. Lomakin

摘要

The functional organization of working memory (WM) was studied by analysis of event-related potentials (ERP) arising in response to imperative auditory signals during delayed motor reproduction of visuospatial (broken lines) and letter sequences in children aged 10–12 years (n = 28, 14 girls). The retention time of reference sequences (500 msec or 3000 msec) and the method of presentation (static or dynamic) were varied. Specific changes in the magnitudes of the positive ERP components P200 and P300 for verbal and non-verbal sequences were found when the mode of presentation and retention time in WM were varied. The results obtained here, along with data from a previous study involving adult subjects [Kurgansky et al., 2022], support the view that the neural basis of representations of sequentially organized information during its storage in WM undergoes transformations which are apparent as activation of the anterior and posterior associative cortical areas as the delay time of the imperative signal increases. The age specificity of the functional organization of WM during retention of sequences in children aged 10–12 years is seen as predominance of the involvement of the cortical areas of the left hemisphere during retention of both visuospatial and verbal information.