Voluntary spatial attention has different effects on voluntary and reflexive saccades.
Voluntary spatial attention has different effects on voluntary and reflexive saccades.
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自愿空间注意对自愿和反射性眼跳有不同的影响。
DOI：
10.1100/tsw.2003.72
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发表时间：
2003
影响因子：
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通讯作者：
Sereno,AnneB
中科院分区：
文献类型：
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作者：
Seidlits,StephanieK;Reza,Tammie;Briand,KevinA;Sereno,AnneB
尽管许多研究已经调查了跳眼运动和空间注意之间的关系，但一个基本问题仍然存在争议。一些研究表明，空间注意力促进了扫视，而另一些研究则声称，当空间注意力集中时，眼球运动实际上受到抑制。然而，这些差异可能是因为先前的研究忽略了分离和明确注意对两种不同类型的扫视的影响，即反射性（刺激导向）和自愿（反扫视）。本研究探讨了自愿性空间注意对自愿性和反身性扫视的影响。结果表明，自愿空间注意对两种类型的扫视有不同的影响。通过符号提示（箭头）告知受试者即将到来的扫视应该指向何处，在空间注意的参与下，反扫视总是大大促进。反射性扫视显示很少或没有提示效应，只有当这些提示与无提示试验随机混合时才表现出显著的促进作用。此外，本研究还检验了注视条件（间隙、步进和重叠）对注意调制的影响。提示效果不受固定条件的影响。因此，自愿性空间注意对自愿性扫视和反身性扫视的影响始终不同，并且在这些研究中没有证据表明自愿性线索抑制反身性扫视，即使在间隙范式中也是如此。
Although numerous studies have investigated the relationship between saccadic eye movements and spatial attention, one fundamental issue remains controversial. Some studies have suggested that spatial attention facilitates saccades, whereas others have claimed that eye movements are actually inhibited when spatial attention is engaged. However, these discrepancies may be because previous research has neglected to separate and specify the effects of attention for two distinct types of saccades, namely reflexive (stimulus‐directed) and voluntary (antisaccades). The present study explored the effects of voluntary spatial attention on both voluntary and reflexive saccades. Results indicate that voluntary spatial attention has different effects on the two types of saccades. Antisaccades were always greatly facilitated following the engagement of spatial attention by symbolic cues (arrows) informing the subject where the upcoming saccade should be directed. Reflexive saccades showed little or no cueing effects and exhibited significant facilitation only when these cues were randomly intermixed with uncued trials. In addition, the present study tested the effects of fixation condition (gap, step, and overlap) on attentional modulation. Cueing effects did not vary due to fixation condition. Thus, voluntary spatial attention consistently showed different effects on voluntary and reflexive saccades, and there was no evidence in these studies that voluntary cues inhibit reflexive saccades, even in a gap paradigm.