New Brain Briefs on the Senses

Do you know that emotions increase activity in the visual cortex, so “colors look more vivid and details stand out when we’re happy, angry, or frightened”?  Or that hair cells play a vital function in hearing and that as we get older the “progressive loss of hair cells means less acute hearing, particularly in higher frequencies”? How about that olfactory receptor cells are themselves neurons that are “on one end in direct contact with the external world and the other in direct contact with the brain”?  Have you ever wanted to learn more about how our senses function?

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