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Miguel A. Velasco, Alejandro Clemotte, Rafael Raya, Ramón Ceres, Eduardo Rocon, A Novel Head Cursor Facilitation Technique for Cerebral Palsy: Functional and Clinical Implications, Interacting with Computers, Volume 29, Issue 5, September 2017, Pages 755–766, https://doi.org/10.1093/iwc/iwx009
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Abstract
This article evaluates the performance of individuals with cerebral palsy (CP) using an inertial human–computer interface (HCI) based on head movements and a novel facilitation algorithm which we named MouseField. In total, 17 participants from three centers specialized in CP participated in a series of tests that evaluated rapidity and accuracy in pointing tasks using a head mouse named ENLAZA, with and without MouseField. Cluster analysis was used to classify the participants into three categories, C1–C3 ordered by throughput. MouseField improved rapidity in C2 and C3 and accuracy in C3. Although the accuracy of the least impaired (C1, MACS IV–V) decreased, MouseField improved task performance of users with severe motor disorders (MACS V), with decrements of 33.3 and 65.5% in the task execution time. The results show that severely impaired individuals who cannot use traditional input devices could benefit from using MouseField and ENLAZA for a facilitated navigation that minimizes targeting errors.