Sweet Tooth Gene

Researchers have linked a specific gene difference to consuming more sugary foods. And as this ScienCentral News video explains, they even uncovered how the sweet tooth gene likely affects sugar intake. Do you think that this is really a genetic defect, or could there be a reason certain people feel the need for more sugar?

The Olfactory Membrane

The male narrator focuses on the structures of the olfactory membrane such as the receptor cells, cilia, and olfactory glands by using simple illustrations with arrows the appropriate times. How is smell information passed from the nostril cavity to the brain? What is the function of the Bowmans glands?

The Olfactory Pathway

This short clip follows nicely after the clip above. In a similar fashion to the previous clip, the narrator reviews how air passes the olfactory membrane to the cranial nerves, and eventually to the olfactory cortex. Imagine you are blindfolded and someone places an object under your nose. You are asked to identify it. Suppose you correctly identified […]

Chocolate Bird: Action Olfaction

This is the opening scene from the 1971 film Willy Wonka and the Chocolate Factory. (The soundtrack has been replaced.) A note on YouTube from the person who uploaded it says Try and immerse yourself in the chocolaty aromas . . . Did you find that your olfactory system was affected by watching this video? Why or why […]

How to Attract Girls Pheromones

In this clip from Brainiac Science, an experiment is conducted: Will a blindfolded woman be most attracted to a man who smells of pheromones (or, in this case, a synthetic substitute), one who smells of aftershave, or one who smells of sweat? How scientific do you think the results of this experiment are? What are pheromones? How […]

Anosmia: Life Without Smell

This short documentary follows the lives of two people who suffer from Anosmia they have lost the ability to be able to smell. Each of the people featured in this video lost their sense of smell in different ways. In addition to the ways featured here a virus and nasal polyps what are some causes of anosmia? How […]