Poor human olfaction is a 19th-century myth.
Poor human olfaction is a 19th-century myth.
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DOI:
10.1126/science.aam7263
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发表时间:
2017-05-12
期刊:
影响因子:
--
通讯作者:
McGann JP
中科院分区:
文献类型:
--
作者:
McGann JP
It is commonly believed that humans have a poor sense of smell compared to other mammalian species. However, this idea derives not from empirical studies of human olfaction but from a famous nineteenth century anatomist’s hypothesis that the evolution of human free will required a reduction in the proportional size of the brain’s olfactory bulb. The human olfactory bulb is actually quite large in absolute terms and contains a similar number of neurons to other mammals. Moreover, humans have excellent olfactory abilities. We can detect and discriminate an extraordinary range of odors, we are more sensitive than rodents and dogs for some odors, we are capable of tracking odor trails, and our behavioral and affective states are influenced by our sense of smell.
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