The operant arena was used as the framework in which to study the theory of risk-sensitivity, A small colony of hooded rats was exposed to increasing work demands while given the choice between simultaneous fixed ratio ...

The effects of nicotine administered during one of three gestational trimesters on development and behavior of rats were investigated. Pregnant female SHS (Satinder's Heterogeneous Stock) rats were injected subcutaneously with ...

The effects of Variable Interval (VI) schedules of reinforcement on the dispersion patterns and aggregate densities of a small population of rats was studied. Eight male rats were permanently housed in an arena in which ...

PELLETIER, M. R. (1988). Effect of prenatal cadmium exposure on development and behavior of selectively bred genetic lines of rat: The purpose of the study was to investigate the effects of cadmium exposure as related ...

Ethanol-Morphine interactions: a study of the effects of prenatal exposure on the development and behavior of the rat. The purpose of the study was to investigate the effects of ethanol, morphine and ethanol-morphine ...