A Nose-Computer Interface Could Turn Dogs Into Super Detectors
55 years, 2 months ago

A Nose-Computer Interface Could Turn Dogs Into Super Detectors

Wired  

So far the array has been tested in rats, with a version for dogs coming later, Lavella says. In a demo video viewed exclusively by WIRED, a Canaery scientist uses a wand to capture an air sample from four different petri dishes, each containing a different odorant. The current array that’s implanted in the demo rat has 128 electrodes that capture neural signals from the olfactory bulb. These devices use chemical sensors to convert odor molecules into electric signals, which are then analyzed by a pattern-recognition system to identify the odor source. “Animals can do things that we can’t get current sensors to do, so that’s a smart way to get around that problem,” says Joel Mainland, an olfaction researcher at the Monell Chemical Senses Center, a nonprofit research institute in Philadelphia.

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History of this topic

We built a tiny electronic nose that can beat a mouse at its own game
4 months, 2 weeks ago

We built a tiny electronic nose that can beat a mouse at its own game

Raw Story  

Imagine a robot that can detect scents in the air and track down their sources as efficiently as a dog or a mouse. By constantly measuring and re-adjusting the temperature with a high level of precision, we achieved a highly sensitive sensor response that could detect even slight, fast changes in odors. Drones equipped with fast electronic noses could change …

Scientists teach mice to smell an odour that doesn't exist
4 years, 9 months ago

Scientists teach mice to smell an odour that doesn't exist

Daily Mail  

Scientists have taught mice to smell an odour that doesn't exist in a study to show how the brain identifies different scents. Once triggered, these receptor cells send electric signals to nerve-ending bundles in the olfactory bulb called ‘glomeruli’ and then on to brain cells, known as neurons. The nerve fibres of smell receptor cells extend directly into the highly …

The Electronic Nose Knows
26 years, 10 months ago

The Electronic Nose Knows

Wired  

Using dogs to sniff out land mines or catch drug smugglers may seem a primitive approach in these high-tech times, but canines still thrive in these "professions." Scientists at the Oak Ridge National Laboratory, the California Institute of Technology, and a commercial offshoot of Caltech called Cyrano Sciences Inc., are developing sensing technologies that use circuits to "smell" the TNT …

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