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Using Real-Time fMRI to Control a Dynamical System by Brain Activity Classification

wanderine
The movie clip shows an fMRI based brain computer interface (BCI) realization. The human brain and a computer were here linked by fMRI and worked together as a controller of a dynamical system. The dynamical system was an inverted pendulum. The subject had the ability to induce a force on the pendulum by evoking brain activity in the parts of the motor cortex associated with movements of the left and right hand. A force was applied from the left if the subject was detected to activate the left hand and from the right if the subject was detected to activate the right hand. If the subject was detected to rest no force was applied. A neural network was trained to separate between rest, activity induced by activating the left and right hand. The subject was able to balance the inverted pendulum during a 7 minute test run.

This work was presented at the MICCAI conference in 2009, the article can be found at

http://liu.diva-portal.org/smash/get/diva2:297924/FULLTEXT01

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