It is expected to realize the brand-new angle to understand the brain mechanism that the brain wave is finely decoded

It is expected to realize the brand-new angle to understand the brain mechanism that the brain wave is finely decoded
The brain accepts the stimulus of external information, such as the signal of seeing and hearing exists in physics, chemical form, the nervous system can only transmit information in the form of neural pulse, so must change various physics, chemical signal into neural pulses such as frequency, rhythm, wavelength,etc. to express different information, this course is called the code. Just as people regulate the frequency of the radio, the scientist has been already utilizing a brain cortex electric current to copy the method to remember at present, copy neural pulses such as the frequency, wavelength while writing brain activity,etc. and analyze it accurately, in order to obtain more details about brain consciousness, help people to understand the working mechanism of the brain from a brand-new angle.
Three kinds of physiologic tools of brain
For many years, the neuroscientist has been analyzing when and where the brain will be active. Recently, the researchers of Washington University School of Medicine used the electric current of cortex of brain to copy and write France, this is that one kind monitors the technology of the brain with electrode array put on the surface of cerebral cortex temporarily. " Analyze the intersection of brain and function, which position of brain does it concentrate on usually and when to produce actively. " The intersection of and Germany Sa say analyze brain frequency, wavelength of activity offer for studying brain physiology except that electroencephalogram (EEG) in the Eric of medical college , the nuclear magnetic resonance imaging (fMRI) of functionality Third kind of main means .
The technology of nuclear magnetic resonance imaging of the functionality is mainly to utilize magnetism to shake the change that the radiography measured the blood motive force that the neuronal activity initiate, make a reservation in a certain function area in the brain. The electroencephalogram is to put the electrode on the scalp, produced the brain wave if a lot of neurons discharge at the same time, record on the special paper after the electroencephalogram machine is enlarged, obtain certain wave form, amplitude, frequency and curve of the location looks to get the electroencephalogram. Discharge frequency determine brain enliven frequency or wavelength, this can take hertz and cycle come on metrological second. Electroencephalogram diagnose value to be most large to epilepsy, control traumatism or the intersection of epilepsy and consciousness of patient with electroencephalogram, can help to confirm diagnosing and dividing type, help certainly, can also be used for studying the sleep.
Compare in the electroencephalogram, the cortex of brain electric current copies and writes France to record the brain wave data from cerebral cortex directly. In clinic,on distinguish Germany and neurosurgeons other Sa whether resist with this kind of method by epilepsy medicine function source district, draw out these areas in order to remove the focus through the surgery. After being allowed by the patient, the surface of cerebral cortex that they put the electrode array under epilepsy patient's skull, control the movable spectrum of brain, resist the source area of role in brain of epilepsy medicine in order to find, compared with traditional brain wave supervision method, the result that this kind of method obtains should be more detailedly.

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