An exception to the rule: An intact sense of smell without a crucial olfactory brain structure – Science Daily

Excerpt:

Is a pair of brain structures called the olfactory bulbs, which are said to encode our sense of smell, necessary? That is, are they essential to the existence of this sense? Weizmann Institute of Science researchers recently showed that some humans can smell just fine, thank you, without olfactory bulbs. Their finding — that around 0.6% of women, and more specifically, up to 4% of left-handed women, have completely intact senses of smell despite having no olfactory bulbs in their brains — calls into question the accepted notion that this structure is absolutely necessary for the act of smelling. The findings of this research, which were published today in Neuron, may shake up certain conventional theories that describe the workings of our sense of smell.

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