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In this video I explain the process of transduction for taste and how gustatory cells detect tastant molecules in food. I discuss structures of the tongue, including papillae, taste buds, and gustatory cells and consider evolutionary explanations for changes in the number of taste buds over time. I also mention the phenomenon of supertasters, who are more sensitive to taste and can detect compounds that non-supertasters cannot. Finally I consider how the experience of taste arises from the stimulation of 5 main types of gustatory cells, as well as the stimulation of other receptors, other senses, and even beliefs and expectations.

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Recommended Videos:

Linda Bartoshuck on Supertasters:
http://klru.pbslearningmedia.org/resource/nvsn6.sci.bio.taster/what-is-a-supertaster/

NOVA Science Now - The Science of Picky Eaters:
https://www.youtube.com/watch?v=mffC4hKBd2A

Taste Perception and Colored Jello
https://www.youtube.com/watch?v=1oX7hJLDtpU

Penn and Teller Water Taste Test
https://www.youtube.com/watch?v=YFKT4jvN4OE

Enable closed-captioning or find a full transcript of this video here: http://www.psychexamreview.com/gustation-taste-perception/