A Model to Estimate the Optimal Layout for Assistive Communication Touchscreen Devices in Children With Dyskinetic Cerebral Palsy.
A Model to Estimate the Optimal Layout for Assistive Communication Touchscreen Devices in Children With Dyskinetic Cerebral Palsy.
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DOI：
10.1109/tnsre.2018.2840445
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发表时间：
2018-07
期刊：
影响因子：
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通讯作者：
Sanger TD
中科院分区：
文献类型：
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作者：
Bertucco M;Sanger TD
运动障碍性脑瘫儿童过度不自主运动和运动缓慢通常会导致无法与增强和替代交流 (AAC) 设备正确互动。这极大地限制了沟通。因此，了解如何调整设备布局以最大限度地提高每个孩子的沟通率非常重要。本研究的目的是开发一个数学模型来估计运动障碍性脑瘫儿童的信息传输率，并确定触摸屏平板电脑的最佳 AAC 布局，从而提高通信速度。该模型根据按钮大小、数量、按钮之间的间距以及出错或丢失目标按钮的概率来预测信息率。信息率的估计证实了我们的假设，即与年龄匹配的健康儿童相比，运动障碍性脑瘫儿童的通道容量较低。当根据模型预测的最佳参数定制 AAC 布局时，信息率会提高。总之，本研究量化了运动障碍对辅助沟通设备沟通的影响，并表明可以通过将 AAC 触摸屏设备的参数与儿童的能力进行最佳匹配来提高沟通性能。
Excess involuntary movements and slowness of movement in children with dyskinetic cerebral palsy often result in the inability to properly interact with Augmentative and Alternative Communication (AAC) devices. This significantly limits communication. It is, therefore, essential to know how to adjust the device layout in order to maximize each child’s rate of communication. The aim of this study was to develop a mathematical model to estimate the information rate in children with dyskinetic cerebral palsy and to determine the optimal AAC layout for a touchscreen tablet that results in enhanced speed of communication. The model predicts information rate based on button size, number, spacing between buttons and the probability of making an error or missing target buttons. Estimation of the information rate confirmed our hypothesis of lower channel capacity in children with dyskinetic cerebral palsy compared to age-matched healthy children. Information rate increased when the AAC layout was customized based on the optimal parameters predicted by the model. In conclusion, this study quantifies the effect of motor impairments on communication with assistive communication devices and shows that communication performance can be improved by optimally matching the parameters of the AAC touchscreen device to the abilities of the child.