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Four paradigms to study visual--spatial attention of myopic subjects.

机译：研究近视对象的视觉-空间注意力的四个范例。

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摘要

We describe four protocols for evaluating the attentional skills of myopic and control subjects in target stimulus detection tasks; simple reaction times (RT) are recorded. Two protocols are designed to study both automatic and voluntary orienting of attention. Modified implicit orienting paradigms [Q. J. Exp. Psychol. 32A (1980) 2; J. Exp. Psychol. Gen. 109 (1980) 160] are used in which cues elicit a shift of attention but gaze is maintained on a central fixation point. A third paradigm is designed to study the time-course of focusing; two circles (focusing cues) of different diameters are randomly presented on a point of the visual space where attention has been previously shifted. Seven SOAs (stimulus onset asynchrony) are used. The fourth paradigm was designed to evaluate visual search; three circular arrays of four, eight and twelve stimuli are randomly presented around a fixation point and subjects have to detect the target stimulus inside one of the circles (the other circles are distracters). Since some attentional deficits are associated with myopia [Invest. Ophthalmol. Vis. Sci. 38 (1997) 1725; Cogn. Brain Res. 8 (1999) 369], these protocols could be useful both in the detection of deficits in subjects on the verge of becoming myopics and in the development of cognitive training programs to reduce attentional deficits.
机译：我们描述了四种协议，用于评估近视和控制对象在目标刺激检测任务中的注意技能;记录简单的反应时间（RT）。设计了两种协议来研究注意力的自动和自愿定向。改进的隐式定向范例[Q. J. Exp。 Psychol。 32A（1980）2; J. Exp。 Psychol。 [Gen.109（1980）160]被使用，其中线索引起注意力转移，但是凝视保持在中央注视点上。第三种范式旨在研究聚焦的时程。在先前已转移注意力的视觉空间点上随机呈现了两个直径不同的圆（聚焦提示）。使用了七个SOA（刺激发作异步）。第四个范式旨在评估视觉搜索。在固定点周围随机呈现三个分别由四个，八个和十二个刺激组成的圆形阵列，受试者必须检测其中一个圆圈内的目标刺激（其他圆圈是干扰物）。由于一些注意力缺陷与近视有关[Invest。眼药可见科学38（1997）1725;哥脑水库。 8（1999）369]，这些协议对于在成为近视眼边缘的受试者中检测缺陷和开发减少注意力缺陷的认知训练计划都可能有用。

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