Rodent

Opportunity for interaction as reinforcer in a T-maze

Used 2 forms of handling as reinforcement in a 'T' maze for 34 male Sprague-Dawley albino rats. In a 12-day experiment, those receiving gentling learned to avoid reinforcement, while those receiving fondling learned to obtain it. In a 6-day follow-up,...

Year Published: 1976Topics: Handling, Social Housing & CompanionshipAnimal Type: Rat, Rodent

Citation: Werner, C., Anderson, D. F. 1976. Opportunity for interaction as reinforcer in a T-maze. Personality & Social Psychology Bulletin 2, 166-169.

Attenuation of gastric lesions by psychological aspect of aggression in rats

In a study with 80 male albino rats, Ss that fought with each other in response to electric shock showed reduced gastric lesions in comparison with Ss that received the same shocks alone so that fighting behavior did not occur....

Year Published: 1976Animal Type: Rat, Rodent

Citation: Weiss, J. M., Pohorecky, L. A., Salman, S. et al. 1976. Attenuation of gastric lesions by psychological aspect of aggression in rats. Journal of Comparative and Physiological Psychology 90, 252-259.

Sex differences in circadian wheel running rhythms in the Mongolian gerbil

Gerbils run up to 8 km/24 h in running wheels.

Year Published: 1976Animal Type: Gerbil, Rodent

Citation: Roper, T. J. 1976. Sex differences in circadian wheel running rhythms in the Mongolian gerbil. Physiology and Behavior 17, 549-551.

Adaptation of the glucocorticosterone response to novelty

Novelty of the environment is a powerful stimulus to activate the pituitary-adrenal axis. With respect to adaptation of the response to the novel environment, the present findings suggest that more than 2 hr and up to 4 hr is required...

Year Published: 1976Animal Type: Rat, Rodent

Citation: Pfister, H. P., King, M. G. 1976. Adaptation of the glucocorticosterone response to novelty. Physiology and Behavior 17, 43-46.

Incidence of pup mortality in the rat with particular reference to nesting material, maternal age and parity

Better breeding results were obtained when animals had access to woodwool instead of paper tissue as nesting materials. With paper tissues for nesting purposes 60% of the young were lost compared with 18% with woodwool.

Year Published: 1976Animal Type: Rat, Rodent

Citation: Norris, M. L., Adams, C. E. 1976. Incidence of pup mortality in the rat with particular reference to nesting material, maternal age and parity. Laboratory Animals 10, 165-169.

Environmental enrichment and crowding: Behavioral and hormonal effects

Environmental enrichment and available refuge did ameliorate the usual hormonal responses to crowding. [p. 740]

Year Published: 1976Topics: Environmental Enrichment, Stocking DensityAnimal Type: Gerbil, Rodent

Citation: Hull, E. M., Kastaniotis, C., L'Hommedieu, G. et al. 1976. Environmental enrichment and crowding: Behavioral and hormonal effects. Physiology and Behavior 17, 735-741.

The Biology of Guinea Pigs: Behavior

Possibly related to, or derived from grooming and perhaps also involving an element of aggression is one animal grasping the hair of another in its teeth and pulling it out; the mouthful is often ingested. Hair pulling is a common...

Year Published: 1976Animal Type: Guinea Pig, Rodent

Citation: Harper, L. V. 1976. Behavior. In: The Biology of the Guinea Pig. Wagner, J. E. , Manning, P. J. (eds), 31-51. Academic Press, New York, NY.

Effects of age at differential housing and the duration of individual housing/grouping on intermale fighting behavior and adrenocortical activity in TO strain mice

When the mice were subjected to stress (e.g., open field exposure) corticosterone levels in single-housed subjects were consistently higher than in group-housed subjects.

Year Published: 1976Animal Type: Mouse, Rodent

Citation: Goldsmith, J. F., Brain, P. F., Benton, D. 1976. Effects of age at differential housing and the duration of individual housing/grouping on intermale fighting behavior and adrenocortical activity in TO strain mice. Aggressive Behavior 2, 307-323.

Home-cage wheel activity recording in mice

Laboratory mice run up to 16 km/24 h in running wheels.

Year Published: 1976Animal Type: Mouse, Rodent

Citation: Festing, M. F. W., Greenwood, R. 1976. Home-cage wheel activity recording in mice. Laboratory Animals 10, 81-85.

Habituation of object contact in socially-reared and isolated rats (Rattus norvegicus)

Rats reared in social isolation were found to contact fewer novel objects in an open-field than their socially reared litter mates. They also contacted a smaller variety of objects, and contacted them in different ways. Social animals showed more manipulatory...

Year Published: 1976Animal Type: Rat, Rodent

Citation: Einon, D., Morgan, M. 1976. Habituation of object contact in socially-reared and isolated rats (Rattus norvegicus). Animal Behaviour 24, 415-420.