Just thinking about targets can aggravate neglect on cancellation tests.
Just thinking about targets can aggravate neglect on cancellation tests.
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仅仅考虑目标可能会加剧对取消测试的忽视。
DOI：
10.1080/13554790490960468
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发表时间：
2004
期刊：
影响因子：
0.8
通讯作者：
Heilman,KM
中科院分区：
文献类型：
--
作者：
Mennemeier,MS;Morris,M;Heilman,KM
虽然许多研究调查了目标的视觉特征如何影响忽视中的抵消性能，但很少有人（如果有的话）甚至认为思维过程（例如使用算法识别目标）可能同样会加剧忽视。这项对慢性忽视患者的单例研究比较了操纵后的取消性能（1）视觉目标识别的容易程度，（2）使用算法识别目标，以及（3）目标取消的材料特异性。神经病变严重程度由靶点遗漏的数量和位置定义。虽然每种操作对忽视严重程度有不同的影响，但新颖而有趣的发现发生在第二种情况下，当使用数学算法来识别目标时。在这种情况下，目标遗漏相对于其他测试增加，目标取消仅限于页面的右半部分。这是第一份报告，据我们所知，忽视取消测试可以加剧内部的思维过程，数学算法，而不是外部操纵的视觉刺激和程序特性的取消测试。本研究中使用的算法的一个重要特征是，它似乎激活了完整的左大脑半球。
While many studies investigate how the visual features of targets influence cancellation performance in neglect, few, if any, even consider that thought processes, such as the use of an algorithm to identify targets, might similarly aggravate neglect. This single-case study of a patient with chronic neglect compared cancellation performance after manipulating (1) ease of visual target identification, (2) the use of an algorithm to identify targets, and (3) the material-specific nature of target cancellation. Neglect severity was defined by the number and location of target omissions. While each manipulation had a differential impact on neglect severity, the novel and interesting finding occurred during the second condition, when a math algorithm was used to identify targets. In this condition, target omissions increased relative to other tests and target cancellations were confined to the right half of the page. This is the first report, to our knowledge, that neglect on cancellation tests can be aggravated by an internal thought process, a math algorithm, as opposed to external manipulations of visual stimuli and procedural characteristics of cancellation tests. An important characteristic of the algorithm used in this study is that it appeared to activate the intact left cerebral hemisphere.