Deficits in the covert orienting of attention in children with Developmental Coordination Disorder: Does severity of DCD count?
Deficits in the covert orienting of attention in children with Developmental Coordination Disorder: Does severity of DCD count?
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DOI：
10.1016/j.ridd.2012.03.005
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发表时间：
2012-09-01
影响因子：
3.1
通讯作者：
Wu, Sheng K.
中科院分区：
文献类型：
--
作者：
Chen, Wei-Ying;Wilson, Peter H.;Wu, Sheng K.
发展性协调障碍（DCD）儿童在视觉空间注意的隐蔽定向方面存在缺陷，这表明儿童在注意脱离和/或抑制控制方面存在潜在问题。然而，一个重要的理论问题仍然不清楚，即缺陷的模式是否随着DCD的严重程度而变化。51名中度DCD儿童（MDCD）， 24名重度DCD儿童（SDCD）和38名典型发育（TD）儿童参与了研究。比较了他们在视觉空间注意任务（COVAT）隐蔽定向，特别是自愿控制模式下的表现。结果显示，两组之间的表现模式有所不同。在较短的刺激-反应异步（350 ms）下，三组有效提示和无效提示的反应时间差异相似。然而，在较长的SOA（800毫秒）中，两个DCD组在遵循无效提示的响应方面继续表现出相对劣势。这表明反应抑制和/或注意力脱离的缺陷在中度和重度DCD儿童中都很明显。讨论了这些发现对理论和治疗的意义。(C) 2012 Elsevier Ltd.版权所有。
Children with Developmental Coordination Disorder (DCD) show deficits in the covert orienting of visuospatial attention, suggesting an underlying issue in attentional disengagement and/or inhibitory control. However, an important theoretical issue that remains unclear is whether the pattern of deficits varies with DCD severity. Fifty-one children with moderate DCD (MDCD), 24 children with severe DCD (SDCD), and 38 typically developing (TD) children participated in the study. Their performance was compared on the covert orienting of visuospatial attention task (COVAT), specifically the voluntary control mode. Results showed that the pattern of performance differed between groups. At a short stimulus-response asynchrony (350 ms), the difference in response times for validly and invalidly cued trials was similar for all three groups. However, at the longer SOA (800 ms), both DCD groups continued to show a relative disadvantage for responses that followed invalid cues. This suggests that a deficit in response inhibition and/or attentional disengagement is manifest in children with both moderate and severe DCD. The implications of these findings for theory and treatment are discussed. (C) 2012 Elsevier Ltd. All rights reserved.