Neuroscience

How our sense of taste changes as we age

Taste is a complex phenomenon. We do not experience the sensation through a single sense (as we would when we see something using our sense of sight, for example) but rather it is made up of the five senses working together ...

Neuroscience

The vibrational theory of olfaction for the win

(Medical Xpress)—As occurred in the painstaking deciphering of Egyptian hieroglyphs, adherence to outmoded ideas is a lasting impediment to our understanding of how odorants are decoded by the olfactory system. The primary ...

Psychology & Psychiatry

The human sense of smell: It's stronger than we think

When it comes to our sense of smell, we have been led to believe that animals win out over humans: No way can we compete with dogs and rodents, some of the best sniffers in the animal kingdom.

Neuroscience

Fish courtship pheromone uses the brain's smell pathway

Research at the RIKEN Brain Science Institute in Japan has revealed that a molecule involved in fish reproduction activates the brain via the nose. The pheromone is released by female zebrafish and sensed by smell receptors ...

Neuroscience

3-D model of human retronasal olfactory sense

The sweetness of a peppermint candy can be experienced with the nose pinched shut, but flavor is detectable only when the pinch is released and volatiles in the candy are exhaled back into the nose where smell receptors exist.

Neuroscience

Lost sense of smell often invisible, untreatable problem

Mimi Koberlein woke up one morning unable to smell the bacon her husband was frying for breakfast. Confused, she ran to the shower, grabbed her shampoo and inhaled deeply. Nothing. Two years later, Koberlein, 47, still can't ...

Neuroscience

No two people smell the same

A difference at the smallest level of DNA—one amino acid on one gene—can determine whether you find a given smell pleasant. A different amino acid on the same gene in your friend's body could mean he finds the same odor ...

Neuroscience

Researchers identify critical link in mammalian odor detection

Researchers at the Monell Center and collaborators have identified a protein that is critical to the ability of mammals to smell. Mice engineered to be lacking the Ggamma13 protein in their olfactory receptors were functionally ...

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