Publications

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.

Diurnal changes of plasma cortisol levels in sheep adapting to a new environment

It was demonstrated that an average of 28 days is needed for cortisol to return to normal levels when sheep are brought from pasture into an animal house.

Year Published: 1973Animal Type: Sheep

Citation: McNatty, K. P., Young, A. 1973. Diurnal changes of plasma cortisol levels in sheep adapting to a new environment. Journal of Endocrinology 56, 329-330.

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.

The effects of familiar visual and olfactory cues on the aggression behaviour of mice

Decreasing the familiarity of the environment and providing flexible avenues of escape lead to reduced levels of inter-male aggression. Greatest levels of aggression were found in cages that had ungergone incomplete cleaning, such as renewal of substrate only.

Year Published: 1973Animal Type: Mouse, Rodent

Citation: Jones, R. B., Nowell, N. W. 1973. The effects of familiar visual and olfactory cues on the aggression behaviour of mice. Physiology and Behavior 10, 221-223.

The preference of rats for free or response-produced food

The majority [but not all] of rats preferred freely available food over food that could be obtained only via lever pressing.

Year Published: 1973Animal Type: Rat, Rodent

Citation: Hothersall, D., Huey, D., Thatcher, K. 1973. The preference of rats for free or response-produced food. Animal Learning and Behavior, 241-243.

Influence of duration, intensity and spectrum of light exposure on sexual maturation of female rats

Light affects sexual maturation.

Year Published: 1973Animal Type: Rat, Rodent

Citation: Hauntzinger, G. M., Piacsek, B. E. 1973. Influence of duration, intensity and spectrum of light exposure on sexual maturation of female rats. Federation Proceedings 32, 213.