Brain weight increases resulting from environmental enrichment: a directional dominance in mice.

Science (Impact Factor: 31.48). 09/1970; 169(3947):776-8. DOI: 10.1126/science.169.3947.776
Source: PubMed

ABSTRACT A genetic analysis of brain weights of 544 mice reared in either enriched or standard laboratory environments indicated significant directional dominance in the percentage of increase in brain weight as a result of enrichment.

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