Details

Autor(en) / Beteiligte

• Campbell, Thomas F.
• Needleman, Herbert L.
• Riess, Julie A.
• Tobin, Michael J.

Titel

Bone Lead Levels and Language Processing Performance

Ist Teil von

• Developmental neuropsychology, 2000-01, Vol.18 (2), p.171-186

Ort / Verlag

Colchester: Lawrence Erlbaum Associates, Inc

Erscheinungsjahr

2000

Quelle

Psychology & Behavioral Sciences Collection

Beschreibungen/Notizen

• 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.