[뇌 및 인지과학 개론] Olfaction (후각)

소개

뇌 및 인지과학개론 레포트이며, Olfaction(후각)에 대해 설명하고 있습니다. 영문으로 작성되었고 A+를 받았습니다.

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본문내용

Olfaction is the sense of smell. It is the response to chemicals that contact the membranes inside the nose. For most mammals, olfaction is critical for finding food and mates and for avoiding dangers such as predator. (Kalat, 1999) The olfactory system also provides an important social function by detecting of pheromones that cause innate behavior or physiological reactions. Surprisingly, smell is fairly old sense. The olfactory system existed in the common ancestors of all existing animals. Roughly 200 million years ago, the ancestors produced three different categories of mammals, insects and reptiles. They independently modified their olfactory systems to diversify their receptors. The olfactory sources of each species are unique, and receptor genes working with these olfactory sources have evolved accordingly.

참고자료

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