Effects of the duration of individual or group housing on behavioral and adrenocortical reactivity in male mice (1978)

Goldsmith, J. F., Brain, P. F., Benton, D.

Abstract

Basal corticosterone levels did not show a significant difference between single-housed and group-housed animals. 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, indicating an increased adrencortical reactivity.