University of Toronto and Holland Bloorview Kids Rehabilitation Hospital, Toronto, ON, Canada.
Augment Altern Commun. 2011 Sep;27(3):150-62. doi: 10.3109/07434618.2011.614640.
Children with hyperkinetic movement (HKM) often have limited access to traditional augmentative and alternative communication technologies (e.g., mechanical switches). To seek a communication solution for these children, this study explored the possibility that discernable biomechanical patterns, related to preference, exist amid HKM. We deployed a unified approach to analyse a child's movements, fusing caregiver and clinician observations with quantitative data (accelerations of the upper extremities). Two case studies were examined. In both, the accelerometer data identified preference at adjusted accuracies statistically above chance using a linear discriminant classifier. Visually, communicative movement patterns were identified in the first child (κ=0.25-0.27) but not in the second child (κ=0.03-0.11). Implications of this study include possible enhancement in communication and independence for these children.
患有多动运动障碍（HKM）的儿童通常难以使用传统的辅助和替代性沟通技术（例如，机械开关）。为了为这些儿童寻求沟通解决方案，本研究探讨了在 HKM 中是否存在与偏好相关的可识别生物力学模式的可能性。我们采用了一种统一的方法来分析孩子的动作，将护理人员和临床医生的观察与定量数据（上肢加速度）融合在一起。对两个案例进行了研究。在这两个案例中，加速度计数据使用线性判别分类器以统计学上高于机会的准确度确定了偏好。在第一个孩子中，通过肉眼观察到了有沟通意义的运动模式（κ=0.25-0.27），但在第二个孩子中没有（κ=0.03-0.11）。本研究的意义包括这些儿童的沟通和独立性可能得到增强。
