The Sense of Smell in Humans: Exploring its Power

Information from olfactory nerves does not proceed directly to the brain’s thalamus, the gateway to consciousness.

Matthias Laska compares senses of smell across species by collecting data on different species and their sensitivity to certain odors.

A challenge in comparing sense of smell between species is that each animal has to learn to associate a particular odor with a reward and communicate when they detect it.

<p>Humans are generally more sensitive sniffers than monkeys and rats on a limited range of odors.</p> Signup and view all the answers

<p>Humans perform better in detecting scents that are relevant to them, like aromas produced by plants, giving them an evolutionary advantage.</p> Signup and view all the answers

<p>It can help people learn about someone’s health and genetic compatibility.</p> Signup and view all the answers

<p>Scientists believed humans were not very good at detecting and identifying odors.</p> Signup and view all the answers

<p>Jessica Freiherr suggests that our animal ancestors used their noses more than we do in modern society.</p> Signup and view all the answers

<p>At least 1 trillion different odors.</p> Signup and view all the answers

<p>Sniffing can provide information about whether people are happy, sad, or fearful.</p> Signup and view all the answers