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A series of experiments was performed to determine whether long-term habituation of the acoustic startle response in rats is mediated by conditioned associations between contextual cues and the test stimulus. Experiment 1 established parameters yielding demonstrable long-term habituation of the startle response. Experiment 2 attempted to overshadow the(More)
Female rats were maintained on either a High Sucrose or High Glucose diet during gestation and lactation. Their pups were continued on the same diet as their dam until they were 42 days of age; thereafter all animals were maintained on laboratory chow. From 21-84 days of age, each rat was given a weekly two-choice preference test between the High Sucrose(More)
BACKGROUND Unexpected clinical deterioration before 34 weeks gestation is an undesired course in early-onset pre-eclampsia. To safely prolong preterm gestation, accurate and timely prediction of complications is required. METHOD Women with confirmed early onset pre-eclampsia were recruited from 53 maternity units in the UK to a large prospective cohort(More)
The adverse effects of traffic-related air pollution on children's respiratory health have been widely reported, but few studies have evaluated the impact of traffic-control policies designed to reduce urban air pollution. We assessed associations between traffic-related air pollutants and respiratory/allergic symptoms amongst 8-9 year-old schoolchildren(More)
PREP (Prediction of risks in early onset pre-eclampsia) is a multicentre prospective cohort study aiming to develop and validate a prediction model in women admitted with early-onset pre-eclampsia for risk of adverse maternal outcome at 48 hours and until discharge. The primary outcome was a composite of adverse maternal outcomes and the secondary outcome a(More)
Water-deprived rats given fixed-electrode, variable-intensity tailshock at random times rated each trial by pressing either a "high-aversiveness" or "low-aversiveness" lever in order to obtain water. Trials on which a warning signal preceded tailshock resulted in more "high-aversiveness" leverpressing than did otherwise equivalent unsignaled trials. The(More)
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