This BrainGate nerve interface that can be transplanted into the brain can detect and record brain signals, allowing people to regain control of their opponents and feet, so as to operate the computer through the actions of points and touches. A single BrainGate device can operate for 2.7 years (ie 1000 days).

This BrainGate nerve interface that can be transplanted into the brain can detect and record brain signals, allowing people to regain control of their opponents and feet, so as to operate the computer through the actions of points and touches. A single BrainGate device can operate for 2.7 years (ie 1000 days).

In the coming months, US military researchers will announce a new research progress. It is reported that the research is about developing a device that can be implanted into the brain to help injured soldiers restore memory.

The US Department of Defense's Advanced Research Projects Agency (DARPA) is working hard to implement a four-year plan to develop an advanced memory-stimulating device as part of President Obama's $ 100 million initiative to study the human brain. Although no similar research has been done in science, it has raised ethical questions: Can human thinking be manipulated in the name of treating war wounds or delaying brain aging?

Some people believe that these studies can bring good news to about 5 million Alzheimer's patients in the United States. At the same time, it will also help nearly 300,000 American soldiers who suffered traumatic brain damage in Iraq and Afghanistan. At a meeting convened by the University of Texas Brain Health Center this week, DARPA project director Justin Sanchez said: "If you are injured while on duty and you can't remember your family, we hope that the study will take these memories The function is restored. "

He said: "We can develop a neural repair device directly connected to the hippocampus of the brain, and restore the first type of memory, that is, declarative memory." Declarative memory refers to a type that can clearly remember people, events, and facts. And digital memory, there is no research to show that declarative memory can be regained after being lost.

Preliminary research

At present, all the researchers can do is to help patients with Parkinson's disease reduce tremor, shorten the coma time of patients with epilepsy, and improve the memory of patients with Alzheimer's disease through a method called "deep brain stimulation". . The equipment used to implement "deep stimulation" is inspired by a pacemaker. Pulsed electrical stimulation of the brain is like a stable drumbeat, but this method is not suitable for everyone.

Research experts say that a more detailed method is needed to restore memory. "Memories are patterns and connections," explains Robert Hampson, an assistant professor at Wake Forest University. "If memory repair is to be done, we need something that can provide specific patterns."

In his research on rodents and monkeys, Hampson found that nerve cells in the hippocampus, the brain region that processes memory, can produce different electrical signals when animals see red or blue; when they see facial pictures or A certain food also responds differently. Based on this phenomenon, Hampson and his colleagues used brain repair devices to stimulate the hippocampus, prolonging the animal's short-term working memory.

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