Neuroscience

Quantifying how the brain smells

Scientists haven't quite decoded how animals smell, but researchers at Cold Spring Harbor Laboratory (CSHL) found that it's different from previously thought.

Psychology & Psychiatry

REM sleep silences the siren of the brain

Upset by something unpleasant? We have all been there. Fortunately, it also passes. A new day, a new beginning. At least: if you have restful REM sleep. Researchers at the Netherlands Institute for Neuroscience discovered ...

Neuroscience

Your nose knows when it comes to stronger memories

Memories are stronger when the original experiences are accompanied by unpleasant odors, a team of researchers has found. The study broadens our understanding of what can drive Pavlovian responses and points to how negative ...

Neuroscience

From genes to receptors to perception: olfaction unraveled

Several years ago the internet was captivated by the enigma of "the dress—specifically, was the dress black and blue, or was it white and gold? No matter what you saw, the viral debate served to highlight that humans differ ...

Medical research

Smelling with your tongue

Scientists from the Monell Center report that functional olfactory receptors, the sensors that detect odors in the nose, are also present in human taste cells found on the tongue. The findings suggest that interactions between ...

Dentistry

Home remedies: The bad breath battle

There are many causes of bad breath, also called halitosis. Your mouth may be the source. The breakdown of food particles and other debris by bacteria in and around your teeth can cause a foul odor. If your mouth becomes ...

Genetics

Mapping the neural circuit of innate responses to odors

A team of neuroscientists at the Champalimaud Centre for the Unknown (CCU), in Lisbon (Portugal), has performed one of the first studies into the central neural circuits (or higher brain areas) that underlie innate responses ...

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Odor

An odor or odour is caused by one or more volatilized chemical compounds, generally at a very low concentration, that humans or other animals perceive by the sense of olfaction. Odors are also commonly called scents, which can refer to both pleasant and unpleasant odors. The terms fragrance, scent, and aroma are used primarily by the food and cosmetic industry to describe a pleasant odor, and are sometimes used to refer to perfumes. In contrast, malodor, stench, reek, and stink are used specifically to describe unpleasant odors.

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