Anxiety impairs inhibitory control but not volitional action control
Anxiety impairs inhibitory control but not volitional action control
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DOI：
10.1080/02699930903381531
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发表时间：
2010-01-01
影响因子：
2.6
通讯作者：
Derakshan, Nazanin
中科院分区：
文献类型：
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作者：
Ansari, Tahereh L.;Derakshan, Nazanin
反眼跳任务需要抑制对突如其来的外周刺激的反射性眼跳，并迅速产生对其镜像位置的眼跳。越来越多的证据(见德里克山·艾森克，2009)表明，焦虑会导致更长的抗眼跳潜伏期，这支持了焦虑损害抑制和有效的自上而下的注意力调节的预测。然而，任何观察到的反眼跳表现的差异都允许对抑制和眼跳产生的解释，孤立地质疑关于这些过程的直接推论。目前的研究使用了Odelayedo反眼跳任务，其中参与者被指示保持中央注视，尽管突然的刺激开始，并且只在听到音调时产生反眼跳。在这里，性能受损反映了意志性眼跳产生的弱点，因为延迟消除了同时抑制的需要。当延迟被引入时，高焦虑的个体表现出与低焦虑的个体相似的反眼跳潜伏期，这表明先前在高焦虑的个体观察到的更长的反眼跳潜伏期不能归因于意志性眼跳产生的损害，即动作控制。研究结果表明，焦虑会影响抑制，但不会影响意志行为的产生。
The antisaccade task requires the inhibition of a reflexive saccade toward an abrupt peripheral stimulus, and the rapid generation of a saccade to its mirror position. Accumulating evidence (see Derakshan Eysenck, 2009) indicates that anxiety results in longer antisaccade latencies, supporting the prediction that anxiety impairs inhibition and efficient top-down attention regulation. However, any observed variance in antisaccade performance permits interpretations of inhibition and saccade generation, questioning direct inferences about these processes in isolation. The current study used a odelayedo antisaccade task where participants were instructed to maintain central fixation despite the onset of the abrupt stimulus and only generate an antisaccade upon hearing a tone. Here, impaired performance reflects a weakness in volitional saccade generation as the simultaneous need to inhibit is eliminated by the delay. High-anxious individuals exhibited comparable antisaccade latencies to low-anxious ones when the delay was introduced suggesting that longer antisaccade latencies previously observed in the high anxious cannot be attributed to impairments in volitional saccade generation, i.e., action control. The findings suggest that anxiety affects inhibition but not volitional action generation.