Dantzer R, Tazi A, Bluthé R M
INRA-INSERM, Bordeaux, France.
Behav Brain Res. 1990 Oct 30;40(1):53-60. doi: 10.1016/0166-4328(90)90042-d.
To determine whether processing of information is lateralized in the brain of non-human mammalian species, rats that had undergone ablation of the left or right olfactory bulb were compared to sham-operated animals and to bilaterally bulbectomized animals in their response to emotionally positive or negative social odours. Left-bulbectomized rats were impaired in their behavioural reaction but not in their hormonal response to an odour from a stressed conspecific. They fully retained, however, their ability to recognize a nonstressed juvenile conspecific on the basis of its olfactory characteristics. These results suggest that hemispheric asymmetries develop in mammals not for recognition of emotional stimuli but for association of emotional experiences with appropriate adaptive behaviour.
为了确定信息处理在非人类哺乳动物大脑中是否存在偏侧化，将接受过左侧或右侧嗅球切除的大鼠与假手术动物以及双侧嗅球切除的动物在对情绪积极或消极的社交气味的反应方面进行了比较。左侧嗅球切除的大鼠在行为反应上受损，但在对来自应激同种个体的气味的激素反应上未受损。然而，它们完全保留了根据嗅觉特征识别非应激幼年同种个体的能力。这些结果表明，哺乳动物大脑半球的不对称性发展并非用于识别情绪刺激，而是用于将情绪体验与适当的适应性行为联系起来。
