PCB News - pcb factory: the true development level of brain-computer interface BCI

PCB factory: the true development level of brain-computer interface BCI

Now there are many black technologies that are vacant, such as the brain-computer interface that was hailed as one of the five major technological trends in the future at the 2014 Tencent WE Conference. This is also one of the areas that PCB manufacturersmay be involved in. The unconstrained mind control, the "Avatar" in reality, and the mind flying do make people look forward to it, but to what extent has the current EEG technology developed? Let us take an objective look at the development of brain-computer interfaces.

Objectively speaking, brain-computer interface technology, especially brain-computer interface equipment, is still at a very early stage. There are only a handful of commercial companies in the market that really research brain-computer interfaces (Emotiv, OCZ and Nerosky are the three that are more famous in the end). However, at this stage, the limitations of brain wave control methods are still very large.
In general, the BCI we often say refers to a non-invasive brain-computer interface, just like we often see that the detection click is glued to the head to detect brain waves; while BMI is invasive, that is, directly put the detection electrode Into your skull.

It may be particularly interesting to talk about BMI, but in fact, there has been no meaningful progress in BMI technology applied to the human body for ten to fifteen years. The main direction of BMI technology research is to help patients with paraplegia and atresia. There are indeed many companies producing BMI equipment for research, such as Plexon, Neuralynx, Rippl, BlackRock Microsystems, and TDT. However, apart from the use of BrainGate II developed by Brown University in the United States for clinical trials, none of the company's products are used in clinical trials in the true sense.

BrainGate II is an experiment for paraplegic patients, using BMI to allow paraplegic patients to control a robotic arm to successfully drink the water in the cup. This is an imperfect experiment, so it cannot be widely used. Because there are still many key issues that cannot be resolved, such as the following three issues:

1. The brain-computer interface technology needs to record the activities of thousands of neurons at the same time, but our current technology can only record hundreds of neurons at the same time. At present, there is no system that can record the activity of so many neurons at the same time. This greatly limits the current research of BMI. It is worth noting that some researchers have raised this question and it is not as difficult as imagined, because it is possible to control the brain waves by finding the most critical neurons.

2. Rejection in the body: The sensing electrode installed in the brain is not welcomed by the body's immune system, which may have potential long-term side effects. And the detection sensors installed in the brain may also fail over time. The solution to this problem is to put a very small induction electrode that is harmless to the human body into the brain so that the immune system does not find it (I don't know if it is possible for the time being), or to make a biosynthetic induction electrode, or Some methods have not yet been discovered.

3. The operation of craniotomy and installation of brain sensors is very dangerous.

But what we know is that brain-computer interfaces will definitely be widely used in society, and with the rapid development of science and technology in recent years, no one will think that this day will come soon. Moreover, it is worth noting that, in fact, each of us now has our own mind control device-your hands.

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