Lillian A Schaefer

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It is widely recognized that the nature and severity of responses to toxic exposure are age-dependent. Using active avoidance conditioning as the behavioral paradigm, the present study examined the effect of short-term methylmercury (MeHg) exposure on two adult age classes, 1- and 2-year-olds to coincide with zebrafish in relatively peak vs. declining(More)
It is widely recognized that the nature and severity of responses to toxic exposure are age-dependent. Animal studies show that early life history stage, especially embryonic, exposures to toxic chemicals are extremely deleterious due to the high sensitivity of actively developing organ systems animals get older, progressive degeneration of tissue and loss(More)
It is widely recognized that the nature and severity of responses to toxic exposure are age-dependent. Animal studies show that early life history stage, especially embryonic, exposures to toxic chemicals are extremely deleterious due to the high sensitivity of actively developing organ systems animals get older, progressive degeneration of tissue and loss(More)
Significantly greater inhibition of deprivation-induced food intake occurs following cotreatment with naltrexone and either the D1 antagonist, SCH-23390, the D2 agonist, quinpirole, or the D2 antagonist, haloperidol, relative to naltrexone alone. Cotreatment with the D1 agonist, SKF-38393, failed to alter naltrexone's inhibition of deprivation-induced(More)
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