10 upper-extremity spastic subjects and 10 normal subjects were studied with a force-reflecting joystick in the performance of a continuous time-tracking task as well as an acquisition task termed, “Fitts’ Law.” Certain force-reflection paradigms, in a spatial sense, allowed the spastic subjects to obtain performance proficiency near levels of the normal subjects as measured by a capacity metric.
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ReppergerD. W., PhillipsC. A., & CheletteT. L.A study on spatially induced ‘virtual force’ with an information theoretic investigation of human performance.IEEE Transactions on Systems, Man, and Cybernetics, 1995, 25 (No. 10).
