A quantitative test using a binary classification task (CT) to evaluate the dose response relationship between mercury (Hg) exposure and short term memory functioning was studied. Workers in mercury cell chloralkali facilities were tested twice (with a 3 month interval) using the BCT, and performance was compared with urinary Hg concentrations. The cross sectional regression analysis indicated memory scanning was slowed by increasing by exposure. The authors conclude that this study illustrates the value of using precise measures of performance in evaluating the effects of neurotoxins.
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