Rodent

Early stimulation of rodents: a critical review of present interpretations

The perceived benefits of early stimulation of rodents is questioned.

Year Published: 1973Animal Type: Rodent

Citation: Daly, M. 1973. Early stimulation of rodents: a critical review of present interpretations. British Journal of Psychology 64, 435-460.

Effects of light intensity, wavelength and quanta on gonads and spleen of the deer-mouse

Spleen and gonad weight as well as growth rate of the whole animal is dependent on light intensity.

Year Published: 1973Animal Type: Other Rodent, Rodent

Citation: Vriend, J., Lauber, J. K. 1973. Effects of light intensity, wavelength and quanta on gonads and spleen of the deer-mouse. Nature 244, 37-38.

Relationship of thyroid and adrenal function to fur-chewing in the chinchilla

The fur-chewing chinchillas showed increased thyroid activity (P < 0·5), increased adrenalcortical function (P < 0·05) and decreased rectal temperature (P < 0·01). This study suggested that increased endocrine activity could be due to the loss of insulation over the...

Year Published: 1973Topics: Abnormal/Problematic BehaviorAnimal Type: Chinchilla, Rodent

Citation: Vanjonack, W. J., Johnson, H. D. 1973. Relationship of thyroid and adrenal function to fur-chewing in the chinchilla. Comparative Biochemistry and Physiology 45, 115-120.

The isolation syndrome in mice

Socially isolated mice differ from group-housed mice not only behaviorally, but also in their immunological responses, hormone levels, brain neurochemistry, learning ability, pain thresholds, and sensitivitiy to drugs.

Year Published: 1973Animal Type: Mouse, Rodent

Citation: Valzelli, L. 1973. The isolation syndrome in mice. Psychopharmacologia 31, 305-320.

Sleep patterns related to rearing rats in enriched and impoverished environments

Rats housed in groups in large, enriched versus alone in small, barren cages show brain changes indicative of enhanced cerebral activity.Single-caged rats consumed more pieces of food than their enriched littermates.

Year Published: 1973Animal Type: Rat, Rodent

Citation: Tagney, J. 1973. Sleep patterns related to rearing rats in enriched and impoverished environments. Brain Research 53, 353-361.

Nesting material as a reinforcer for female mice

Female mice will work by lever-pressing to gain access to nesting material.

Year Published: 1973Animal Type: Mouse, Rodent

Citation: Roper, T. J. 1973. Nesting material as a reinforcer for female mice. Animal Behaviour 21, 733-740.

Inter male fighting affected by home-cage odours of male and female mice

Odors deposited by female mice has an aggression buffering effect on males.

Year Published: 1973Animal Type: Mouse, Rodent

Citation: Mugford, R. G. 1973. Inter male fighting affected by home-cage odours of male and female mice. Journal of Comparative and Physiological Psychology 84, 289-295.

Behavioral effects of environmental enrichment in randomly bred mice

Lower open-field defecation was noted in enriched mice. Inanimate enrichment promoted body weight increase.

Year Published: 1973Animal Type: Mouse, Rodent

Citation: Manosevitz, M., Joel, U. 1973. Behavioral effects of environmental enrichment in randomly bred mice. Journal of Comparative and Physiological Psychology 85, 373-382.

Genetic analyses of nest building behavior in laboratory mice (Mus musculus)

A Mendelian genetic analysis and a diallel cross study were conducted to investigate nest-building behavior of inbred mice. The amount of cotton used to build nests was observed for 4 days when the mice were 8 weeks of age. Results...

Year Published: 1973Animal Type: Mouse, Rodent

Citation: Lee, C. T. 1973. Genetic analyses of nest building behavior in laboratory mice (Mus musculus). Behavior Genetics 3, 247-256.

Interaction motivates attraction: Rats are fond of fondling

In 3 separate experiments, 110 male albino Sprague-Dawley rats were given the opportunity to approach either a tethered stimulus rat or a responsive human hand. Ss were very attracted to the other rats but, when allowed to become familiar with...

Year Published: 1974Animal Type: Rat, Rodent

Citation: Werner, C., Latane, B. 1974. Interaction motivates attraction: Rats are fond of fondling. Journal of Personality and Social Psychology 29, 328-334.