Summary
Following Needleman et al.'s (1979) report of a correlation between tooth lead estimates in children and reaction time as measured by Rodnick and Shakow's (1940) delayed reaction time paradigm, a version of the procedure with two delay periods of 3 s and 12 s was developed for automated presentation and scoring on a VIC-20 microcomputer. Data are presented from a study of 300 children aged 6–14 years. Mean reaction time over six trials for each delay period related in a curvilinear fashion with age, but no relationships were found with sex or intelligence. Age-adjusted reaction time related significantly with blood-lead levels, but accounted for only about 1 per cent of the variance. The effect was mainly observed in younger (6–10 years) children in whom higher lead was associated with slower reaction time.
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This study was supported by the Medical Research Council (UK)
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Hunters, J., Urbanowicz, M.A., Yule, W. et al. Automated testing of reaction time and its association with lead in children. Int. Arch Occup Environ Heath 57, 27–34 (1985). https://doi.org/10.1007/BF00383543
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DOI: https://doi.org/10.1007/BF00383543