Gerhard Meisenberg

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A negative relationship between intelligence and fertility in the United States has been described repeatedly, but little is known about the mechanisms that are responsible for this effect. Using data from the NLSY79, we investigate this issue separately for Blacks, non-Hispanic Whites and Hispanics. The major findings are: (1) Differential fertility would(More)
Vasopressin and related peptides cause short-lasting hypothermia when injected into the lateral ventricle of the rat. In the present study, the structure-activity relationships for the induction of this effect were examined. For the agonist peptides studies, the structural requirements were found to be similar to those required to cause peripheral(More)
The neurohypophyseal hormones oxytocin and vasopressin evoke characteristic behavioral changes after intracerebroventricular injection in mice. These included the induction of excessive grooming and scratching in an unrestricted environment and of escape behavior in stressful situations. The structure-activity relations of 33 neurohypophyseal hormones and(More)
Aversive properties of bombesin were determined in the conditioned place-preference paradigm in rats and compared with the effects on spontaneous behavior. Bombesin induced excessive grooming and/or scratching behavior at doses of 80 ng, 400 ng, and 2.0 micrograms ICV. In the conditioned place-preference paradigm, doses of 400 ng and 2.0 micrograms ICV(More)
Neurohypophyseal hormones and related peptides cause behavioural alterations after intracerebroventricular injection in mice. In the present study, these effects, consisting of excessive grooming and scratching, and of escape-directed activity in stressful situations, could easily be distinguished from those of other centrally acting peptides and drugs by(More)
The neurohypophyseal hormones oxytocin and vasopressin cause a variety of biological effects in animals which are mediated by central nervous system mechanisms. Among the best studied of these effects is the modulation of both memory processes and the development of drug tolerance and dependence. Neurohypophyseal hormones have also been shown to alter(More)
Keywords: Anti-Flynn effect Dysgenics Flynn effect Jensen effect Co-occurrence model a b s t r a c t In this study, 63 observations of secular IQ changes (both Flynn and anti-Flynn effects) are collected from three demographically diverse studies of the Dutch population for the period 1975–2005 (representing the 1950–1990 birth cohorts), along with data on(More)
The acute behavioral effects of some neurohypophyseal hormones after intracerebroventricular injection in mice were examined. The effects, consisting mainly of a dose-dependent stimulation of certain behaviors, were demonstrated in three different behavioral tests. The type of the induced behaviors was dependent on the experimental conditions: If the mice(More)