Scientists in Japan have succeeded in developing robotic hands, which can be controlled by the power of thought. Yukiyasu Kamitani and colleagues, from Advanced Telecommunications Research Institute International (ATR) and Honda Research Institute Japan (HRI), have developed these robotic arms which can immitate the movements of a person's real hand.
The brain monitoring technology used here is functional magnetic resonance imaging (fMRI). A person is made to lay in a MRI scanner and then asked to make shapes with his right hand. The MRI scanner records the activities of the brain as the subject performs some action. This recorded data is then fed to a computer. After several sessions, the computer starts recognising the brain activities related to each shape imagined by the subject, and then instructs the robotic arm to immitate them.
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