File:High-Accuracy-Brain-Machine-Interfaces-Using-Feedback-Information-pone.0103539.s002.ogv

English: Correct compensation with feedback (FPA). In the movie, the FPA modified the predicted direction toward the target and modulated the magnitude of the predicted vector to easily reach the target. As a result, the predicted trajectory with feedback (FPA) reached the target accurately, although the predicted trajectory without feedback did not reach the target. In the movie, the green ball refers to the home position, the blue balls represent objects, the red ball refers to the predicted target from brain activity, the blue arrows describe the a prior predicted movement vectors without feedback, the black arrows are compensation vectors generated by the FPA, the red line represents the finally predicted vectors by the FPA, and the blue dotted line refers to the a prior predicted movement trajectory without feedback. The movie shows the sequence of the a prior prediction, selecting the target, generating artificial feedback vector, and final prediction by FPA.