Computers have learned to track the percentage of brain load
A competent specialist often pays attention to the indicator of the CPU utilization of his computer (with experience he can determine this percentage even without looking at the indicators). This is valuable information, because close to one hundred percent CPU utilization for a long time is a clear sign that it's time to upgrade. On the other hand, the work of the CPU idle also causes a certain feeling of dissatisfaction. And in general, it’s just interesting to know how much the CPU is loading certain tasks in order to use the processing power more efficiently. It turns out that this interest is mutual - computers are also beginning to be interested in the workload of our “CPU” ...
Neurobiologists from Tuft University have created a cap with a portable spectrometer to continuously measure human fatigue. Information about blood circulation in the brain and the oxygen content in the blood enters the computer and is analyzed in real time. Thus, if oxygen suddenly falls below a critical level, then in the middle of the working day the computer can suggest the user to take a break, and if oxygen goes off, the authorities will receive a signal that the employee is too vigorous and needs additional workload.
For continuous analysis of blood circulation and oxygen levels, an infrared functional spectrometer (fNIRS) is used, which does not require the installation of sensors on the skull. This is an extremely portable device that fits easily into a head-bandage or cap and begins to work as soon as a person puts it on his head.
Brain scans occur in the spectrum near the infrared, using laser diodes, which are located in front of the frontal lobes (on the forehead) and have a scan depth of only two to three centimeters.
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The first experiments showed that the device copes with its task. Experimental students were forced to intensively count the number of colors on hundreds of cubes, which quickly tired the brain. The accuracy of the spectrometer readings (that is, the coincidence with the feelings of the experimental subjects themselves) was 83%.
The National Science Society of the United States has already issued a grant of $ 445,000 to refine and improve this unique technology, which can increase the productivity of office workers by an order of magnitude.
Neurobiologists from Tuft University have created a cap with a portable spectrometer to continuously measure human fatigue. Information about blood circulation in the brain and the oxygen content in the blood enters the computer and is analyzed in real time. Thus, if oxygen suddenly falls below a critical level, then in the middle of the working day the computer can suggest the user to take a break, and if oxygen goes off, the authorities will receive a signal that the employee is too vigorous and needs additional workload.
For continuous analysis of blood circulation and oxygen levels, an infrared functional spectrometer (fNIRS) is used, which does not require the installation of sensors on the skull. This is an extremely portable device that fits easily into a head-bandage or cap and begins to work as soon as a person puts it on his head.
Brain scans occur in the spectrum near the infrared, using laser diodes, which are located in front of the frontal lobes (on the forehead) and have a scan depth of only two to three centimeters.
')
The first experiments showed that the device copes with its task. Experimental students were forced to intensively count the number of colors on hundreds of cubes, which quickly tired the brain. The accuracy of the spectrometer readings (that is, the coincidence with the feelings of the experimental subjects themselves) was 83%.
The National Science Society of the United States has already issued a grant of $ 445,000 to refine and improve this unique technology, which can increase the productivity of office workers by an order of magnitude.
Source: https://habr.com/ru/post/14626/
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