The Influence of Focused and Sustained Spatial Attention on the Allocation of Spatial Attention.
The Influence of Focused and Sustained Spatial Attention on the Allocation of Spatial Attention.
复制标题
集中和持续的空间注意力对空间注意力分配的影响。
DOI：
10.1017/s1355617718000802
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发表时间：
2019
期刊：
影响因子：
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通讯作者：
Heilman,KennethM
中科院分区：
文献类型：
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作者：
Lamb,DamonG;Balavage,KristiT;Williamson,JohnB;Knight,LaurenA;Heilman,KennethM
本研究的目的是评估定向注意和持续注意对视觉空间注意分配的影响。健康人通常具有左侧和向上垂直的空间注意偏向。然而，目前还不知道是否会有增加的偏见对出席的刺激部分时，意志空间注意力分配到一部分的刺激，是否有不对称的空间改变这些偏见，以及如何持续的注意力影响这些biases.MethodsWe评估的空间偏见在36个健康，右撇子的参与者使用的水平和垂直线平分的变体。参与者被要求专注于一个或另一端的垂直或水平线或整个垂直或水平线，然后平分线立即或20秒delay.ResultsWe后发现一个显着的主要影响的注意力集中和注意力集中之间的相互作用，并延长观看延迟平分。专注于某一部分的线导致一个显着的偏差对出席的部分和延长查看的线之前，平分显着提高了程度的偏差对出席part.ConclusionsThe增强的偏差与定向和持续的注意力可能是有用的修改线平分测试，特别是在临床人群。因此，未来的研究应确定是否延长观看延迟平分和空间集中的注意力揭示了注意力偏差的患者半球病变正常进行传统的线平分测试。(JINS，2019，25，65-71）
ObjectiveThe objective of this study was to evaluate the impact of directed and sustained attention on the allocation of visuospatial attention. Healthy people often have left lateral and upward vertical spatial attentional biases. However, it is not known whether there will be an increase in bias toward the attended portion of the stimulus when volitional spatial attention is allocated to a portion of a stimulus, whether there are asymmetrical spatial alterations of these biases, and how sustained attention influences these biases.MethodsWe assessed spatial bias in 36 healthy, right-handed participants using a variant of horizontal and vertical line bisections. Participants were asked to focus on one or the other end of vertical or horizontal lines or entire vertical or horizontal lines, and then to bisect the line either immediately or after a 20 second delay.ResultsWe found a significant main effect of attentional focus and an interaction between attentional focus and prolonged viewing with delayed bisection. Focusing on a certain portion of the line resulting in a significant deviation toward the attended portion and prolonged viewing of the line prior to bisection significantly enhanced the degree of deviation toward the attended portion.ConclusionsThe enhanced bias with directed and sustained attention may be useful modifications of the line bisection test, particularly in clinical populations. Thus, future studies should determine whether prolonged viewing with delayed bisection and spatially focused attention reveals attentional biases in patients with hemispheric lesions who perform normally on the traditional line bisection test. (JINS, 2019, 25, 65–71)