For the first time, scientists have recorded individual brain cell activity in awake humans processing different scents, revealing how our brains encode smell at the most fundamental neural level. The groundbreaking study discovered that different brain regions play specialized roles—from chemical identification to emotional valuation—while also processing smell-related images and concepts. These findings bridge decades of research gaps and provide unprecedented insights into one of our most mysterious senses, with implications for understanding sensory disorders and human perception.
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