Prenatal Methylmercury, Postnatal Lead Exposure, and Evidence of Attention Deficit/Hyperactivity Disorder among Inuit Children in Arctic Québec

Background: Prenatal exposure to methylmercury (MeHg) and polychlorinated biphenyls (PCBs) has been associated with impaired performance on attention tasks in previous studies, but the extent to which these cognitive deficits translate into behavioral problems in the classroom and attention deficit/...

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Bibliographic Details
Published in:Environmental Health Perspectives
Main Authors: Boucher, Olivier, Jacobson, Sandra W., Plusquellec, Pierrich, Dewailly, Éric, Ayotte, Pierre, Forget-Dubois, Nadine, Jacobson, Joseph L., Muckle, Gina
Format: Text
Language:English
Published: National Institute of Environmental Health Sciences 2012
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Online Access:http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3491943
http://www.ncbi.nlm.nih.gov/pubmed/23008274
https://doi.org/10.1289/ehp.1204976
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Summary:Background: Prenatal exposure to methylmercury (MeHg) and polychlorinated biphenyls (PCBs) has been associated with impaired performance on attention tasks in previous studies, but the extent to which these cognitive deficits translate into behavioral problems in the classroom and attention deficit/hyperactivity disorder (ADHD) remains unknown. By contrast, lead (Pb) exposure in childhood has been associated with ADHD and disruptive behaviors in several studies.