M P Heironimus

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Monkeys exposed to PCB mixtures during gestation and lactation were tested on two-choice discrimination-reversal learning (DR). In Experiment 1, offspring of mothers fed 1.0 ppm Aroclor 1248, and offspring born 1.5 years after maternal exposure to 2.5 ppm Aroclor 1248 ended did not differ from controls on spatial, color or shape DR problems. In Experiment(More)
Eight monkeys fed 2.5 ppm PCB in their daily diet conceived, delivered and nursed five infants, three of which survived past weaning at four months of age. PCB residues in fat in the surviving infants at 8, 10 1/2, and 23 months of age declined linearly when plotted as log concentration versus time (first order clearance), and these functions extrapolated(More)
Various aspects of locomotor activity were measured, using a crossed photobeam cage, in young rhesus monkeys (M. mulatta) whose mothers had been fed low levels of polychlorinated biphenyls (PCBs, Aroclor 1248) both before and during gestation and nursing. In Exp. 1, a group of young monkeys whose mothers had been fed 2.5 ppm PCBs (the 2.5 ppm(More)
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