期刊
SCIENCE
卷 356, 期 6338, 页码 -出版社
AMER ASSOC ADVANCEMENT SCIENCE
DOI: 10.1126/science.aam7263
关键词
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资金
- National Institute of Mental Health [R01 MH101293]
- National Institute of Deafness and Other Communication Disorders [R01 DC013090]
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 19th-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 that of 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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