Brain encodes complex plumes of odors with a simple code

In the real world, odors don’t happen one puff at a time. Plumes of odor molecules change direction as the wind disperses them. Now, by exploring how animals smell odors under naturalistic conditions, Rockefeller University scientist Maria Neimark Geffen and her colleagues reveal that the brain encodes these swirling molecules using surprisingly little neural machinery. The findings suggest a new theory of how animals smell.

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