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Pubmed for Handhelds

PUBMED FOR HANDHELDS

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  • Title: Two-dimensional cursor-to-target control from single muscle site sEMG signals.
    Author: Perez-Maldonado C, Wexler AS, Joshi SS.
    Journal: IEEE Trans Neural Syst Rehabil Eng; 2010 Apr; 18(2):203-9. PubMed ID: 20071278.
    Abstract:
    In this study, human subjects achieve two-dimensional cursor-to-target control using the surface electromyogram (sEMG) from a single muscle site. The X-coordinate and the Y-coordinate of the computer cursor were simultaneously controlled by the active manipulation of power within two frequency bands of the sEMG power-spectrum. Success of the method depends on the sEMG frequency bandwidths and their midpoints. We acquired the sEMG signals at a single facial muscle site of four able-bodied subjects and trained them, by visual feedback, to control the position of the cursor. After training, all four subjects were able to simultaneously control the X and Y positions of the cursor to accurately and consistently hit three widely-separated targets on a computer screen. This technology has potential application in a wide variety of human-machine interfaces to assistive technologies.
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