Stop and look! Evidence for a bias towards virtual navigation response strategies in children with ADHD symptoms.

TitleStop and look! Evidence for a bias towards virtual navigation response strategies in children with ADHD symptoms.
Publication TypeJournal Article
Year of Publication2016
AuthorsRobaey P, McKenzie S, Schachar R, Boivin M, Bohbot VD
JournalBehav Brain Res
Volume298
IssuePt A
Pagination48-54
Date Published2016 Feb 01
ISSN1872-7549
KeywordsAttention Deficit Disorder with Hyperactivity, Caudate Nucleus, Child, Female, Games, Experimental, Hippocampus, Humans, Male, Maze Learning, Psychological Tests, Putamen, Quebec, Spatial Memory, Spatial Navigation, User-Computer Interface
Abstract

Studies in children show that the development of spatial competence emerges between seven and eight years of age. Multiple memory systems (hippocampus-dependent spatial and caudate nucleus-dependent response learning) are involved in parallel processing of information during navigation. As a hippocampus-dependent spatial strategy also relies on frontoparietal executive control and working memory networks that are impaired in ADHD, we predicted that children will be more likely to adopt a response strategy as they exhibit ADHD symptoms. We tested 285 healthy children on a virtual radial-arm maze paradigm in order to test this hypothesis. We found that children displaying at least one ADHD symptom were more likely to have a perfect performance on a probe trial, which suggests that they did not rely on environmental landmarks. Children with ADHD symptoms may primarily rely on caudate nucleus-dependent response learning strategies at the expense of hippocampus-dependent spatial strategies. Repetition and reward based learning strategies, which are hallmarks of response learning, may be most effective in children exhibiting ADHD symptoms.

DOI10.1016/j.bbr.2015.08.019
Alternate JournalBehav. Brain Res.
PubMed ID26310386
Grant List200112NET-97878-NTA-CFCF-38854 / / Canadian Institutes of Health Research / Canada

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