Hitachi Ltd. (6501) succeeds in "The model train set is controlled only by thinking" experiment.

When the human brain moves actively, this device uses the character that the blood flow volume increases, too. The relation to the idea of the change and the person concerned of the blood flow volume is made data, and the switch is made a pattern beforehand like finish being on-off based on the data. It relaxes to increase the blood stream repeating the calculation in the head so that the switch may turn on to synchronize the switch with the model train set on that, and to make the model run, and to stop it and the blood stream is decreased. It is said that the sensor that feels the movement actually switches the switch, and the model train set was controlled.

Brain function measurement method "Optical topography" that is the method of the measurement of the blood flow volume of the brain and making to data is technologies that can make the change in a local amount of the brain blood according to the brain activity an image by irradiating the Kon infrared rays light that Hitachi developed from the scalp. The situation of the brain activity can excellent be actually measured only by putting on the prevention of the exclusive use without burying the electrode etc.

An optical topography was used
"Kokoro katari".
The expression of the will of Yes/No
can be done only by thinking.
The correct answer rate
at present is 80%.

Hitachi proposes various services and commodities by having already used this principle. It ..Bandainamucohorldings (.. is used in "Namco Nanjataun" of the traction of ..drinking.. A. Moreover, the measuring instrument of "Kokoro Katari" to distinguish the communication of the patient who cannot take moving in Hitachi by the Yes/No form is produced and sold. And, to open the way in technological for welfare equipment development and the research of the rehabilitation of the brain function in the future, the expectation is sent.

Now since it is not possible to do, the device only of the judgment only of "0 and 1 ..digital.." so to speak of active or no so the blood stream now. However, various applications will be thought in the future.

The load to the clinical trial person grows telling (It is matched to remember the code) through degrees of "0 and 1" how many to pass on of course a lot of information and it not is and devices. For instance, the clinical trial person should remember all the patterns though it becomes a calculation that can tell the other party the will of 32 patterns if becoming it when one key word is made to be recognized repeating "0 and 1" by five patterns (Idea of the binary number though there might be a person who understands, too).

It is likely to have to actually grope for the road to making to the analogue , considering this. Moreover, an initial data pattern is quickly acquired because there is an individual variation by the clinical trial person, too and the construction of the system that can distinguish is needed.

However, it is true that light came into view to technological development of this district in the future. It might have to be evaluated need not add the load of piercing the electrode etc. to the inside of the body. I want to expect it of the progress of technological development of Hitachi Ltd. in this district very much in the future.