Rat

Some effects of maintenance luminance and strain differences upon self-exposure to light by rats

The different degrees of illumination in laboratories may be one of the explanations for variation in experimental results.

Year Published: 1962Animal Type: Rat, Rodent

Citation: Lockard, R. B. 1962. Some effects of maintenance luminance and strain differences upon self-exposure to light by rats. Journal of Comparative and Physiological Psychology 55, 1118-1123.

Effects of environmental complexity and social groupings upon the modification of emotional behavior

Environmental enrichment reduced open-filed defecation in rats.

Year Published: 1962Topics: Environmental Enrichment, Social Housing & CompanionshipAnimal Type: Rat, Rodent

Citation: Denenberg, V. H., Morton, J. R. C. 1962. Effects of environmental complexity and social groupings upon the modification of emotional behavior. Journal of Comparative and Physiological Psychology 55, 242-246.

Some effects of free and restricted environmental rearing conditions upon adult behavior in the rat

Environmental enrichment enhances the exploratory drive.

Year Published: 1960Animal Type: Rat, Rodent

Citation: Woods, P. J., Ruckelshaus, S. I., Bowling, D. M. 1960. Some effects of free and restricted environmental rearing conditions upon adult behavior in the rat. Psychological Reports 6, 191-200.

Effects of environmental complexity and training on brain chemistry

Rats living in an enriched cage environment showed changes in brain chemistry when compared with animals living in barren standard cages.

Year Published: 1960Animal Type: Rat, Rodent

Citation: Krech, D., Rosenzweig, M. R., Bennett, E. L. 1960. Effects of environmental complexity and training on brain chemistry. Journal of Comparative and Physiological Psychology 53, 509-519.

Noise stress in laboratory rodents. I. Behavioral and endocrine response of mice, rats and guinea pigs.

Noise affects the endocrine system.

Year Published: 1959Animal Type: Guinea Pig, Mouse, Rat, Rodent

Citation: Anthony, A., Ackerman, E., Lloyd, J. A. 1959 . Noise stress in laboratory rodents. I. Behavioral and endocrine response of mice, rats and guinea pigs. Journal of the Acoustical Society of America 31, 1430-1436.

The effect of housing conditions and simple experimental procedures upon the corticosterone level in the plasma of rats

The banging of metal cages in animal rooms can produce bursts of very intense noise triggering a significant adrenocortical stress response in rats.

Year Published: 1963Animal Type: Rat, Rodent

Citation: Barrett, A. M., Stockham, M. A. 1963. The effect of housing conditions and simple experimental procedures upon the corticosterone level in the plasma of rats. Journal of Endocrinology 26, 97-105.

Reversibility of the reinforcement relation

Rats will increase feeding if this is contingent with wheel-running.

Year Published: 1962Animal Type: Rat, Rodent

Citation: Premack, D. 1962. Reversibility of the reinforcement relation. Science 136, 255-257.

Isolation syndrome in the rat

Individual caging induced hypersensitivity to certain toxic agents.

Year Published: 1965Animal Type: Rat, Rodent

Citation: Hatch, A. M., Wiberg, G. S., Zawidzka, Z. et al. 1965. Isolation syndrome in the rat. Toxicology and Applied Pharmacology 7, 737-745.

Effects of environmental complexity on constituents of brain and liver

Year Published: 1965Animal Type: Rat, Rodent

Citation: Geller, E., Yuwiler, A., Zolman, J. F. 1965. Effects of environmental complexity on constituents of brain and liver. Journal of Neurochemistry 12, 949-955.

Social factors affecting emotionality and resistance to disease in animals: IV

Individual caging decreased the subjects' immunocompetence and, hence their resistance.

Year Published: 1964Animal Type: Rat, Rodent

Citation: Ader, R., Friedman, S. B. 1964. Social factors affecting emotionality and resistance to disease in animals: IV. Differential housing, emotionality, and Walker 256 carcinosarcoma in the rat. Psychological Reports 15, 535-541.