Slideshow Project DOI 10 1682JRRD 2011 12 0243

Slideshow Project DOI: 10. 1682/JRRD. 2011. 12. 0243 JSP Hand-opening feedback for myoelectric forearm prostheses: Performance in virtual grasping tasks influenced by different levels of distraction Heidi J. B. Witteveen, MSc; Leonie de Rond, BSc; Johan S. Rietman, Ph. D, MD; Peter H. Veltink, Ph. D This article and any supplementary material should be cited as follows: Witteveen HJ, de Rond L, Rietman JS, Veltink PH. Hand-opening feedback for myoelectric forearm prostheses: Performance in virtual grasping tasks influenced by different levels of distraction. J Rehabil Res Dev. 2012; 49(10): XX–XX. http: //dx. doi. org/10. 1682/JRRD. 2011. 12. 0243

Slideshow Project DOI: 10. 1682/JRRD. 2011. 12. 0243 JSP • Aim – Investigate hand-opening feedback during performance of virtual grasping tasks and distractive tasks. • Relevance – Sensory feedback and the required attentional demands are important aspects in prosthesis acceptance. This article and any supplementary material should be cited as follows: Witteveen HJ, de Rond L, Rietman JS, Veltink PH. Hand-opening feedback for myoelectric forearm prostheses: Performance in virtual grasping tasks influenced by different levels of distraction. J Rehabil Res Dev. 2012; 49(10): XX–XX. http: //dx. doi. org/10. 1682/JRRD. 2011. 12. 0243

Method Slideshow Project DOI: 10. 1682/JRRD. 2011. 12. 0243 JSP • 10 nondisabled subjects performed virtual grasping tasks: – With and without feedback about hand opening (8 vibrotactile stimulators on forearm). – During 3 levels of distraction: none, counting task, count and subtract task. Experimental setup. Eight coin motors placed in array on forearm. This article and any supplementary material should be cited as follows: Witteveen HJ, de Rond L, Rietman JS, Veltink PH. Hand-opening feedback for myoelectric forearm prostheses: Performance in virtual grasping tasks influenced by different levels of distraction. J Rehabil Res Dev. 2012; 49(10): XX–XX. http: //dx. doi. org/10. 1682/JRRD. 2011. 12. 0243

Results Slideshow Project DOI: 10. 1682/JRRD. 2011. 12. 0243 JSP • Addition of vibrotactile feedback: – Increased performance. – But also increased duration of tasks. • Only highest level of distraction (count and subtract task) influenced grasping task performance. This article and any supplementary material should be cited as follows: Witteveen HJ, de Rond L, Rietman JS, Veltink PH. Hand-opening feedback for myoelectric forearm prostheses: Performance in virtual grasping tasks influenced by different levels of distraction. J Rehabil Res Dev. 2012; 49(10): XX–XX. http: //dx. doi. org/10. 1682/JRRD. 2011. 12. 0243

Conclusion Slideshow Project DOI: 10. 1682/JRRD. 2011. 12. 0243 JSP • Proposed method to provide hand-opening feedback through array of 8 vibrotactile stimulators was successful. – Performance in grasping task increases and is not significantly attention demanding. This article and any supplementary material should be cited as follows: Witteveen HJ, de Rond L, Rietman JS, Veltink PH. Hand-opening feedback for myoelectric forearm prostheses: Performance in virtual grasping tasks influenced by different levels of distraction. J Rehabil Res Dev. 2012; 49(10): XX–XX. http: //dx. doi. org/10. 1682/JRRD. 2011. 12. 0243