The developmental neural substrates of item and serial order components of verbal working memory

Attout, Lucie;Ordonez Magro, Laura;Szmalec, Arnaud;Majerus, Steve;et.al.
(2019) Human Brain Mapping — Vol. 40, n° 5, p. 1541-1553 (2019)

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Authors
  • Attout, LucieUCLouvain
    Author
  • Ordonez Magro, LauraUCLouvain
    Author
  • Author
  • Majerus, SteveuLiège
    Author
  • et. al.
Abstract
(en) Behavioral and developmental studies have made a critical distinction between item and serial order processing components of verbal working memory (WM). This functional magnetic resonance imaging (fMRI) study determined the extent to which item and serial order WM components are characterized by specialized neural networks already in young children or whether this specialization emerges at a later developmental stage. Total of 59 children aged 7–12 years performed item and serial order short‐term probe recognition tasks in an fMRI experiment. While a left frontoparietal network was recruited in both item and serial order WM conditions, the right intraparietal sulcus was selectively involved in the serial order WM condition. This neural segregation was modulated by age, with both networks becoming increasingly separated in older children. Our results indicate a progressive specialization of networks involved in item and order WM processes during cognitive development.
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Citations

Attout, L., Ordonez Magro, L., Szmalec, A., Majerus, S., & et al. (2019). The developmental neural substrates of item and serial order components of verbal working memory. Human Brain Mapping, 40(5), 1541-1553. https://doi.org/10.1002/hbm.24466 (Original work published 2019)