| pubmed-article:2166394 | pubmed:abstractText | Artificial selection of gray rats by the domestic type of behaviour resulted in an increase of the noradrenaline content, but in a decrease of the alpha 2-adrenergic receptors number in the hypothalamus. The data suggest a significant difference in noradrenergic system between domesticated and aggressive animals associated with changes in aggressive behaviour towards man during selection. | lld:pubmed |
