Brain hyper-connectivity and operation-specific deficits during arithmetic problem solving in children with developmental dyscalculia.

ABSTRACT: Developmental dyscalculia (DD) is marked by specific deficits in processing numerical and mathematical information despite normal intelligence (IQ) and reading ability. We examined how brain circuits used by young children with DD to solve simple addition and subtraction problems differ from those used by typically developing (TD) children who were matched on age, IQ, reading ability, and working memory. Children with DD were slower and less accurate during problem solving than TD children, and were especially impaired on their ability to solve subtraction problems. Children with DD showed significantly greater activity in multiple parietal, occipito-temporal and prefrontal cortex regions while solving addition and subtraction problems. Despite poorer performance during subtraction, childr

SUBMITTER: Rosenberg-Lee M 

PROVIDER: S-EPMC4320038 | biostudies-literature | 2015 May

REPOSITORIES: biostudies-literature