Hippocampal-prefrontal engagement and dynamic causal interactions in the maturation of children's fact retrieval.

ABSTRACT: Children's gains in problem-solving skills during the elementary school years are characterized by shifts in the mix of problem-solving approaches, with inefficient procedural strategies being gradually replaced with direct retrieval of domain-relevant facts. We used a well-established procedure for strategy assessment during arithmetic problem solving to investigate the neural basis of this critical transition. We indexed behavioral strategy use by focusing on the retrieval frequency and examined changes in brain activity and connectivity associated with retrieval fluency during arithmetic problem solving in second- and third-grade (7- to 9-year-old) children. Children with higher retrieval fluency showed elevated signal in the right hippocampus, parahippocampal gyrus (PHG), lingual gyrus

SUBMITTER: Cho S 

PROVIDER: S-EPMC3462165 | biostudies-literature | 2012 Sep

REPOSITORIES: biostudies-literature