Science Inventory

NEUROBEHAVIORAL CONSEQUENCES OF LOW LEAD EXPOSURE IN CHILDHOOD

Citation:

Needleman, H. NEUROBEHAVIORAL CONSEQUENCES OF LOW LEAD EXPOSURE IN CHILDHOOD. U.S. Environmental Protection Agency, Washington, D.C., EPA/600/J-82/345.

Description:

Children attending non-remedial first and second grades were classified according to the concentration of lead in their shed deciduous teeth. Children in the lowest and highest tenth percentile were studied with a detailed neuropsychological battery under blind conditions. Thirty-nine non-lead covariates were controlled either by matching or in the biostatistical analysis. High lead children tended to have significantly lower IQ scores particularly on the verbal scales of the WISC-R, impaired auditory and language processing, increased reaction times at longer intervals of delay. Their teachers who were blind to the dentine lead levels found an increased incidence of disordered classroom behavior in direct relationship to the concentration of lead in their teeth.

Record Details:

Record Type:DOCUMENT( REPORT )
Product Published Date:05/24/2002
Record Last Revised:04/16/2004
Record ID: 39501