The nose-computer interface can turn dogs into super detectors

Lavella says that in rats, rats, tested with a version of the dogs, and Lavella says. Only in a stringed demo video, a sewage scientist uses a wand to capture an air sample from four different petries containing a different odor. The stick makes noise and sends through a pod from a pod with a rat house equipped with a nose computer interface through a pipe. After a few seconds of the animal, it is sent to a phone sitting on the pod after smelling smell. It shows a mobile application, the name of the combination, but also a quality result, taking into account the accuracy and concentration of molecules.

Currently, the canery can detect fire accelerators and smokeless powder, which are used in rat prototype, ammunition, cocaine and fentanyl.

Works together to discover the smells of mammals, nose and brain. When smelling molecules entered the noses, they are connected to the receptors. There are about 450 types of alphaca for people, two times more dogs. Each odor stimulates different combinations of a unique electrical signal. This signal is sent to the OCTractory bulb to be processed. Lavella likens the surface of the olfactor bulb to a checkerboard. When a smell goes in, the squares are lit on a checkerboard in a certain pattern.

Canya uses AI program to recognize these samples and link them to smells. After the implantation of the series, scientists are exposed to the scent of the animal to train AI models. Lavella says the program can be trained in about three sessions. During these sessions, scientists present more than two samples from the same odor. Then the animal is exposed to the odor again to confirm the AI ​​models.

There are 128 electrodes to capture neural signals in the Orcactory bulb, implanted in the demo rat. Researchers in the Lawrence Livermore National Laboratory work on a new number with 767 electrodes to learn more. “This will allow the next generation device to have more performance against the most complex background scents and mixed vapors in this area,” Lavella said.

The smell of decoding is not a new effort in any way. They work on researchers “E-nose” technology to reveal odors in the last 40 years. These devices are analyzed by a sample recognition system to identify the source of odor using smell molecules to electrical signals. However, these devices have historically found these devices only to a small odor.

“Animals can do the work that we cannot make current sensors, so it is a clever way to walk the problem,” Joel Mainland is a non-profit research institute in Philadelphia Olfaction researcher in the center of Monell Chemicals.

The canister, which is placed on the surface of the animal’s smell lamp, is thinner than a quarter of a tissue paper and a US postmark.

Photography: Blas Douros / Llnl