"Right now, BMIs tend to be difficult for humans to use and it takes a long time to learn how to control a robotic arm for example. In animals, we are using these devices as models for understanding how to make BMIs better," said the paper's first author, Dr Kelly Clancy, who completed the study at the Sainsbury Wellcome Centre, University College London, following previous work at Biozentrum, University of Basel. In humans, that could be controlling a robotic arm to pick up a cup of water, or moving a cursor on a computer to type a message using the mind. "Brain machine interfaces are devices that allow a person or animal to control a computer with their mind. This research could one day help to improve BMI design. The researchers found that when mice were controlling the cursor, brain activity in the higher visual cortex was goal-directed and contained information about the animal's intention. The study, published today in Neuron, sheds light on how the brain represents causally-controlled objects.
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