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首页> 外文期刊>Research in developmental disabilities >Relationship between reaction time, fine motor control, and visual-spatial perception on vigilance and visual-motor tasks in 22q11.2 Deletion Syndrome
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Relationship between reaction time, fine motor control, and visual-spatial perception on vigilance and visual-motor tasks in 22q11.2 Deletion Syndrome

机译：反应时间，精细运动控制和视觉空间感知对22q11.2缺失综合征警惕性和视觉运动任务之间的关系

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摘要

22q11.2 Deletion Syndrome (22q11DS) is a common microdeletion disorder associated with mild to moderate intellectual disability and specific neurocognitive deficits, particularly in visual-motor and attentional abilities. Currently there is evidence that the visual-motor profile of 22q11DS is not entirely mediated by intellectual disability and that these individuals have specific deficits in visual-motor integration. However, the extent to which attentional deficits, such as vigilance, influence impairments on visual motor tasks in 22q11DS is unclear. This study examines visual-motor abilities and reaction time using a range of standardised tests in 35 children with 22q11DS, 26 age-matched typically developing (TD) sibling controls and 17 low-IQ community controls. Statistically significant deficits were observed in the 22q11DS group compared to both low-IQ and TD control groups on a timed fine motor control and accuracy task. The 22q11DS group performed significantly better than the low-IQ control group on an untimed drawing task and were equivalent to the TD control group on point accuracy and simple reaction time tests. Results suggest that visual motor deficits in 22q11DS are primarily attributable to deficits in psychomotor speed which becomes apparent when tasks are timed versus untimed. Moreover, the integration of visual and motor information may be intact and, indeed, represent a relative strength in 22q11DS when there are no time constraints imposed. While this may have significant implications for cognitive remediation strategies for children with 22q11DS, the relationship between reaction time, visual reasoning, cognitive complexity, fine motor speed and accuracy, and graphomotor ability on visual-motor tasks is still unclear.
机译：22q11.2缺失综合征（22q11DS）是一种常见的微缺失疾病，与轻度至中度智力障碍和特定的神经认知缺陷有关，尤其是在视觉运动和注意能力方面。目前，有证据表明22q11DS的视运动特征并不完全由智力障碍所介导，这些个体在视运动整合方面存在特定缺陷。然而，尚不清楚注意力不集中（例如警惕性）在多大程度上影响22q11DS中视觉运动任务的损害。这项研究使用一系列标准化测试对35例22q11DS儿童，26例年龄相匹配的典型发育（TD）兄弟姐妹对照和17例低智商的社区对照进行了视觉运动能力和反应时间的检查。在定时精细运动控制和准确性任务上，与低智商和TD对照组相比，在22q11DS组中观察到了统计学上显着的缺陷。 22q11DS组在未定时的绘图任务上的表现明显优于低智商的对照组，并且在点精度和简单的反应时间测试方面与TD对照组相当。结果表明，22q11DS中的视觉运动障碍主要归因于心理运动速度的缺陷，当任务定时或不定时时，这种现象就会变得明显。而且，视觉和运动信息的整合可能是完整的，并且在没有时间限制的情况下，确实代表了22q11DS中的相对优势。虽然这可能会对22q11DS儿童的认知补救策略产生重大影响，但仍不清楚反应时间，视觉推理，认知复杂性，精细运动速度和准确性以及在视觉运动任务上的运动能力之间的关系。

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