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Separating Visuospatial from Visuomotor Coordination in Skill Estimation in Learning Disabled Children: The Eta-Mu Model

机译：在学习障碍儿童的技能评估中将视空间与视运动协调分开：Eta-Mu模型

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PurposeA model aimed at detecting the proportion of visuoperceptive and visuomotor coordination impairment in children with ascertained or suspected learning disability is described. The final purpose is to provide customized rehabilitation programs.MethodsIn this pilot study, four children (8-9 years) were administered a set of standardized tests to evaluate their ability to perform visuoperceptive and visuomotor tasks. Depending on the individual outcomes, two indexes have been computed from the resulting z-scores: η (Eta) that quantifies the visuoperceptive impairment, and μ (Mu) that expresses the alteration in visuomotor coordination.ResultsA condition of abnormality was evident in each patient: Subjects 1 and 3 suffered mainly from a visuoperceptive alteration (η higher than expected), while Subject 4 had reduced visuomotor coordination (μ higher than expected). Subject 2 showed balanced visuoperceptive and visuomotor impairment. Based on the obtained η and μ values, each child underwent a customized rehabilitation treatment, then they were examined again. At re-test, η or μ turned balanced and z-scores improved in the four patients.ConclusionsThe Eta/Mu model is effective in detecting the type of damage by quantifying the share of visuoperceptive and visuomotor coordination involvement in dyslexic children, allowing a customized rehabilitative approach. Such an approach, focused on treating the function found to be defective, appears to be effective in rebalancing individual visuomotor and visuoperceptive skills; it should, therefore, be taken into consideration when updating the rehabilitation plans of learning disabled children.
机译：目的描述一种模型，旨在检测已确定或怀疑有学习障碍的儿童的觉感受和视觉运动协调障碍的比例。最终目的是提供定制的康复计划。方法在该初步研究中，对4名儿童（8-9岁）进行了一系列标准化测试，以评估他们执行感知觉和视觉运动任务的能力。根据不同的结局，从所得的z得分中计算出两个指标：量化视觉感受障碍的η（Eta）和表达视觉运动协调性变化的μ（Mu）。 ：受试者1和3主要遭受视感受改变（η高于预期），而受试者4的运动协调性降低（μ高于预期）。受试者2表现出平衡的视感受和运动障碍。根据获得的η和μ值，每个孩子都接受了定制的康复治疗，然后再次进行了检查。在重新测试时，四名患者的η或μ变得平衡，z评分得到改善。结论Eta / Mu模型通过量化阅读障碍儿童的视感受和视觉运动协调参与比例，可以有效地检测损伤的类型，并允许定制康复方法。这种专注于治疗被发现有缺陷的功能的方法似乎可以有效地平衡个体的视觉运动和视觉感受能力。因此，在更新学习障碍儿童的康复计划时应考虑到这一点。

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