Thursday , January 21 2021

I see you: First, the Israeli-French team found neurons that respond to all faces



New studies have been reported by Israeli and French researchers that for the first time, human visuals have identified neurons in cortex, which can favorably favor the face.

Vadim Axelrod, head of the Consciousness and Consciousness Laboratory at the Gonda (Goldscamid) Multidasipineral Brain Research Center at Bar-Elan University, said that "research has been done on human research" in relation to how people react to the face. In a phone interview with Times of Israel, he said, "This is the first recorded human neurons that responds to the facial cortex."

Axelrod said, "Research on understanding the mechanism of how the face is processed on a cellular level," is an important step. Search "Probably can help people understand how people recognize them."

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Axelrod worked in Paris with a team from the Institute Du Craveau et de la Mole Appenir and Paris-Sulfatrior Hospital, whose chairmanship is chaired by Professor Lionel. This study was published in the January 22 issue of Neurology, a medical journal of the American Academy of Neurology.

An example of how the facial-selection neurons surrounding the human fusiform face area react to the face and substances. (Vadim Axelrod; Credits for reproduced personal images with permission: Avishai Taishar; ewrfpiuqwnpiqfnpwi; MoS Sinai and shutterstock.com)

Accelerroad said that identifying faces for human identification is central. All of our social interactions are based on our ability to face the face and their differences: They do not see us for long, recognize celebrities, express our emotions, recognize trusts and more people who recognize them.

In their study, researchers have shown that Visual Cortex's neurons respond more strongly to the city's slopes or objects. Neurons are located in the posterior visual cortex near the posterior facial area, one of the most widely studied brain areas, and is the most important of the largest and most often facial choices, researchers have said in a statement in their study announcement. .

How to react to the neuron in the neuron in human visual cortex – like French actress Catherine Dunnew, in front of the object, in this case, the ventilator, see the picture below (YouTube Screenshot; George Byrd)

Famous people's faces, such as Charles Ezanavar, Nicholas Sarkozy, Catherine Dunnew and Louise de Funse, and participants in the experiment received a high nerve response for unfamiliar faces. In additional experiments, neurons show that they can distinguish between human and animal face appearing in the movie – Clip from Charlie Chaplin's "The Circus"

An example of how the human scene responds to the Neurons object in Cortex – in this case Ventilator – (YouTube screenshot)

"In the early 1970s, Professor Charles Gross and his colleagues discovered neurons in the cortex of the McKake Monkeys, which responded to the faces," Exelrod said in a statement. "In human, face-selective activity has been widely investigated, mainly non-invasive resources such as functional magnetic feedback imaging (FMRI) and electrophysiology (EEG)."

"Intensely," he added, "Fertility neurons in the posterior volatile visual cortex" have never been known before in humans. In our study, we had a very rare chance to record the activity of the nervous system in a patient, while micro-electrodes were placed near the Fusiform Face area. . "

Acceleror said that while studying the patient reading the patient, the researchers weakened on neurons. "We put electrodes near that area," he said. "We were lucky."

So far, the only neurone called "Jennifer Aniston Cells" to respond to the face – the neurons located in the intermediate temporal lobe of the brain, respond to different images of different individuals in this person. Jennifer Aniston, Originally published in 2005 by Hadith Rodrigo Quiroga and his colleagues.

Actress Jennifer Aniston (YouTube screenshot)

Researchers from the Quiroga team have found that these cells only fire in response to specific people's images such as Jennifer Einstein, Bill Clinton, or the Beatles. Researchers said that these neurons were asked to respond to a person's imagination, picture, picture, or masked image.

In the visual cortex known by Israeli and French researchers, neurons are "very different" from the neurons found by the Curioing team, Exelrod said, "They forcefully respond to any type of face regardless of the person's identity."

In addition, these new-found neurons respond very much before, he said.

"In our case, there can be a strong reaction showing an image within 150 milliseconds," he said. "Jennifer Aniston sales usually take 300 milliseconds or more to answer."

These findings can also help the understanding of facial mechanisms of species such as monkeys and humans. Axelrod said, "It's really exciting," after about half a century after the discovery of facial-neuron in the Maccouc monkeys, it is now possible to show the same neuron in humans. "


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