Infantile stimulation induces brain lateralization in rats.

@article{Denenberg1978InfantileSI,
  title={Infantile stimulation induces brain lateralization in rats.},
  author={Victor H. Denenberg and James A Garbanati and Debra Sherman and D A Yutzey and Robert N. Kaplan},
  journal={Science},
  year={1978},
  volume={201 4361},
  pages={1150-2}
}
The hypothesis tested was that the effects of early experiences are asymmetrically distributed in the two brain hemispheres. Litters were either handled or not handled between birth and weaning, and the weanlings were reared in either laboratory cages or enriched environments between 21 and 50 days. When approximately 135 days old, animals within each of the four treatment groups had a right neocortical ablation, a left neocortical ablation, a sham operation, or no surgery. About 1 month later… CONTINUE READING