According to Bruno Méndez Ambrosio of the Institute of Cell Physiology (IFC) of the National Autonomous University of Mexico (UNAM) This is possible because there is equipment that allows wireless signals to be linked to data recording. The specialist achieved this project by adapting commercial Bluetooth systems, bioelectric sensors (a highly sensitive device for identifying electrical signals) and a signal amplifier to transfer the data to a computer.
He explained that these artifacts are usually very expensive, which is why the highest house of studies created a cheaper version, with the aim that more institutions can provide society with a better service.
“This type of acquired knowledge allows us to use equipment more efficiently and there is a project called Art and Brain where we were able to synchronize visual art stimulation tasks with 20 recording channels and we have signals with a good signal-to-noise ratio. But we are ready to reproduce and have our own electroencephalogram”, commented.
The specialist in designing electronic devices for neuroscience also commented that these developments can be used in other areas such as veterinary or applied in rural areas. It is usually more practical since it eliminates the use of cables and is non-invasive.
The electrical signals emitted by the brain, the muscles and the heart, allow us to know the behavior of said organ. These signals indicate a record of all the activity carried out by them and through the electromagnetic signals it is possible to identify when they work normally or have a fault.
The human brain and body can produce electricity thanks to chemical reactions in cells. The human body is a very complex electrical system.
During brain week, a global campaign that spreads the benefits of neuroscience research such as progress and challenges of research on the human brain organized by the IFC highlighted that measuring bioelectrical signals from the human body no It is not an easy task, for which surface contact electrodes are used.
“If the direct electrical activity of a neuron were measured, the answer is approximately 100 millivolts, but when it is done Cutaneous route the situation is different. For example, measurements of the heart and muscles when done superficially they register a millivolt, that is, 100 times smaller; while the cerebral ones, which are covered by the skull, are of the order of microvolts”, highlighted Bruno Méndez.
He explained that these advances are very significant for neuroscience because they work as a turning point to create new projects. He mentioned that over the years there have been scientists interested in bioelectrical measurement issues such as Luigi Galvani, an Italian physician, physiologist and physicist who observed that connect the limbs to a current there was a muscle contraction and who later developed a theory of animal electricity.
To disprove his theory, Alessandro Volta, an Italian chemist and physicist, invented the battery we use today. To reflect, the specialist also referred to the Dutch physician and physiologist Willem Einthoven who received the Nobel Prize for Medicine and Physiology in 1924.
The first electrocardiogram was built by Willem Einthoven in 1900. who managed to record the electrical activity of the heart, one of the most important advances in the history of cardiology”, said the electronics expert.
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Thanks to bluetooth, a computer will be able to receive signals that our heart and brain emit.