alexa Bone lead levels and language processing performance.
Geology & Earth Science

Geology & Earth Science

Journal of Geography & Natural Disasters

Author(s): Campbell TF, Needleman HL, Riess JA, Tobin MJ, Campbell TF, Needleman HL, Riess JA, Tobin MJ

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Abstract The relation between bone lead absorption and language processing abilities in 156 randomly selected 11- to 14-year-old boys who were asymptomatic for lead toxicity is examined. Tibial lead concentrations were measured by X-ray fluorescence spectroscopy. The language processing outcome variables consisted of the least and most difficult subtests from the Nonword Repetition Task, Competing Language Processing Task, and the Revised Token Test. Participants were classified by quartiles according to bone lead concentrations, and analysis of variance and analysis of covariance measured the impact on language processing scores. Results showed that children in the highest bone lead quartile displayed decreased language processing performance on the most difficult language processing tasks but not on the easier tasks. This article was published in Dev Neuropsychol and referenced in Journal of Geography & Natural Disasters

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