Blink activities during multiple vigilance tasks with memory loads.

本研究探讨了眨眼活动相对于中枢和外周刺激呈现在不同的刺激间隔（ISI）。眨眼最常发生在刺激出现后立即（福田，2006）。这些浓度与ISI为1500 ms或更长时的刺激持续时间无关。目前尚不清楚刺激位置和ISI如何影响眨眼发生。如果它对刺激位置或ISI的变化敏感，那么眨眼和选择性注意之间的关系将变得更加明显。因此，我们研究了在3种不同的ISI下，当在中央或周边位置检测单个数字时眨眼模式的变化。作为警戒任务，在200 ms持续时间的离散序列中从0到9的440个个位数数字出现在计算机显示器上的中央或外围位置，并且在200，400，或800毫秒ISI。数字1的出现频率为0.2，而数字1的出现频率为0.2， ...更多信息 NT被要求在检测到按键时尽可能快地按下按键。通过使用连接到头盔的摄像机，对从刺激开始前1000 ms到其后2,000 ms的每次眨眼进行计数，并从2种场景和3种ISI的所有6种可能排列中收集数据。然后将这些数据转换成显示眨眼时间分布（TDB）的图形，并通过扩展显示从刺激开始眨眼概率的变化。当刺激位于中央时，在200和400 ms的较短LSI下的TDB显示仅在目标刺激之后眨眼概率的峰值。相比之下，最长的ISI（800 ms）显示在任何类型的中央定位的刺激后眨眼概率的峰值。与周边刺激，眨眼频率减少在较短的ISI为200和400毫秒。也有没有峰值有关的没有键被按下在这些较短的ISI，这表明目标刺激是间歇性地去忽视。然而，在最长ISI为800 ms的任何类型的外周刺激后，这些峰值都很明显。这些结果表明，虽然在ISI为800 ms的任何刺激后，眨眼容易立即发生，它几乎完全是后-在ISI为200和400 ms的目标刺激的检测。这导致了眨眼概率的峰值可能与选择性眨眼相关的结论。关注少

This research examined eye blinking activity relative to central and peripheral stimuli presented at different Inter Stimulus Intervals (ISI). Blinking occurs most frequently immediately after the presentation of stimuli (Fukuda, 2006). These concentrations are independent of stimulus duration at ISI of 1, 500 ms or more. What is not yet known is how stimulus location and ISI affect blinking occurrence. If it is susceptible to changes in stimulus location or ISI, the relationship between blinking and selective attention will become more apparent We therefore examined shifts in blinking patterns when detecting single digits in either central or peripheral locations at 3 different ISI.The experiment presented 1, 440 single digit numbers from 0 to 9 in a discrete sequence of 200 ms duration as a vigilance task The digits appeared on a computer display in either a central or peripheral location and at 200, 400, or 800 ms ISI. The digit 1 was presented with a frequency of 0.2, and participa … More nts were required to press a key as quickly as possible upon its detection. By using a camera attached to a helmet, every instance of blinking from 1000 ms before stimulus onset to 2,000 ms thereafter was counted, and data was collected from all 6 possible permutations of the 2 scenarios and 3 ISI. This data was then converted into graphs showing the Temporal Distribution of Blinks (TDB) and, by extension, the change in blink probability from stimulus onset.When the stimulus was centrally located, the TDB at shorter LSI of 200 and 400 ms revealed the peak in eye blinking probability following the target stimulus only. By contrast, the longest ISI (800 ms) showed the peak in eye blinking probability following any kind of centrally located stimulus. With peripheral stimuli, eye blinking frequency was reduced at the shorter ISI of 200 and 400 ms. There were also no peaks pertaining to no key being pressed at these shorter ISI, suggesting that the target stimulus was intermittently going unnoticed. Such peaks were however apparent following any kind of peripherally located stimuli at the longest ISI of 800 ms.These results suggest that, while eye blinking is apt to occur immediately after any stimulus at ISI of 800 ms, it is almost exclusively post-detection of the target stimulus at ISI of 200 and 400 ms. This leads to the conclusion that peaks in blink probability may be related to selective attention. Less