Mice and humans share ancient brain system for smell, studies show
The Times of India reports that two studies from Northwestern University, published in Science Advances, reveal that humans and mice rely on the same brain wave rhythm to process smells. A single…
The Story in Brief
The Times of India reports that two studies from Northwestern University, published in Science Advances, reveal that humans and mice rely on the same brain wave rhythm to process smells. A single human inhalation triggers low-frequency theta oscillations, matching the frequency of a rodent's sniff.
One study found that mice take deliberate single sniffs while handling food, coordinating breath and movement. The other recorded brain activity in human olfactory bulbs, showing that one slow breath activates several internal cycles. The research suggests an ancient, shared neural system for smell across mammals.
The Indian Opinion
Popular accounts often frame the human sense of smell as weak or primitive compared to rodents. These studies challenge that oversimplification by revealing a shared neural rhythm. The real difference is not in brain hardware but in breathing tempo. The findings also correct the view that sniffing is a mere reflex. Mice deliberately coordinate movement and breath. The question now is whether this ancient system can be harnessed to restore smell function after injury.
Source: timesofindia.indiatimes.com
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