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Neural correlates of active controlled retrieval development: An exploratory ERP study.
France Simard1, Geneviève Cadoret2
1Département de musique, Faculté des arts, Université du Québec à Montréal, Case postale 8888, succ. Centre-Ville, Montréal, Québec H3C 3P8, Canada.
Brain and Cognition
|May 4, 2018
Summary
Children aged 6-10 show distinct brain activity during active controlled retrieval, a key working memory process. This highlights significant maturational changes in the developing brain networks supporting cognitive functions.
Area of Science:
- Cognitive Neuroscience
- Developmental Psychology
- Neuroscience
Background:
- Working memory involves information storage and manipulation for complex cognitive tasks.
- Active controlled retrieval, a key manipulation process, significantly improves in children aged 6-10.
- This developmental improvement suggests underlying maturational changes in neural networks.
Purpose of the Study:
- To examine neural activity differences in children and adults during active controlled retrieval.
- To investigate the maturational development of brain networks supporting working memory manipulation.
Main Methods:
- Functional brain activity was recorded in 14 healthy children (6-10 years) and 14 adults.
- Participants performed an active controlled retrieval task.
- Event-related potentials (ERPs) were analyzed during the retrieval period (300-500 ms).
Main Results:
- Both children and adults exhibited a P3b-like potential in parietal sites during active controlled retrieval.
- Children, unlike adults, showed an "N400 like" potential in fronto-central sites.
- These distinct neural signatures indicate age-related differences in retrieval processing.
Conclusions:
- The findings reveal age-specific neural activity patterns associated with active controlled retrieval.
- Results support the notion of substantial maturational development in the neuronal networks supporting working memory manipulation during childhood.
- This study provides insights into the neurodevelopmental trajectory of cognitive control.
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