How do target predictability and precueing affect the production of express saccades in monkeys?
How do target predictability and precueing affect the production of express saccades in monkeys?
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目标可预测性和预先提示如何影响猴子快速眼跳的产生？
DOI：
10.1111/j.1460-9568.2004.03299.x
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发表时间：
2004
期刊：
影响因子：
--
通讯作者：
Kendall,Geoffery
中科院分区：
文献类型：
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作者：
Schiller,PeterH;Haushofer,Johannes;Kendall,Geoffery
在恒河猴中确定了目标可预测性和precueing影响快速扫视产生的程度。目标的可预测性，操纵的概率与目标出现在不同的位置，有强烈的影响，快速眼跳的产生。当注视点终止和目标开始之间有50-150 ms的间隙时，用相同的刺激预先提示即将出现的单个目标的位置，可以有效地增加快速扫视的产生。 然而，当差距时间被设置为0毫秒，在单一的目标任务，当几个同时出现的目标，需要使用一个奇怪的任务，或当precue是不相同的目标进行视觉辨别时，precue是无效的。 这些发现表明，快速扫视是由一组有限的条件，增加了目标位置和身份的可预测性。
The extent to which target predictability and precueing affect express saccade generation was determined in Rhesus monkeys. Target predictability, as manipulated by the probability with which targets appeared at various locations, had a strong influence on express saccade generation. Pre‐cueing the location of the appearance of an impending single target with an identical stimulus was effective in increasing express saccade generation when there was a gap of 50–150 ms between fixation spot termination and target onset. However, precueing was not effective when the gap time was set to 0 ms in the single target task, when several simultaneous targets appeared requiring a visual discrimination to be made using an oddity task, or when the precue was not identical to the target. These findings indicate that express saccades are facilitated by a restricted set of conditions that increase the predictability of target location and identity.