On several measures a group of 8 female rats reared with bedding material performed better than a group of 8 reared without bedding. Changes in weight were related to open-field testing and to presence of bedding material.
References
1.
SatinderK. P.New experimental approach to Pavlovian typology in rat. Proc. 75th Annu. Conven. Amer. Psychol. Assn, 1967, 2, 67–68. (Abstract)
