Control of fixation duration in visual search and memory search: another look.
Control of fixation duration in visual search and memory search: another look.
复制标题
视觉搜索和记忆搜索中注视持续时间的控制：另一种看法。
DOI：
10.1037//0096-1523.8.5.709
复制
发表时间：
1982
期刊：
影响因子：
--
通讯作者：
J. Vaughan
中科院分区：
文献类型：
--
作者：
J. Vaughan
在视觉搜索中，每次注视开始和搜索刺激开始之间的可变延迟(高达150毫秒)可以缩短刺激开始和受试者下一次眼跳运动之间的时间(眼动潜伏期)。我们比较了两种关于刺激开始延迟效应的假说：第一，过程监控，认为SOD只是作为促进眼跳反应的警告间隔；第二，预编程，即眼跳在短时间内被预先编程。在第一个实验中，与之前的研究中看到的一样，超氧化物歧化酶在搜索中产生了眼动潜伏期的下降。在第二和第三个实验中，改变了Sternberg记忆搜索范式中的记忆集合的大小，或者使用了一些搜索刺激两侧的掩蔽来改变每个刺激的处理时间。对短延迟的眼跳进行部分预编程可以预测，增加单个刺激的处理时间只会在短时间内增加眼球运动潜伏期。然而，在所有SOD中，动眼运动潜伏期都同样增加。在这项搜索任务中，超氧化物歧化酶似乎促进了眼跳的启动。
In visual search a variable delay (up to 150 msec) between the beginning of each fixation and the onset of a search stimulus reduces the time (oculomotor latency) between stimulus onset and the subject's next saccadic eye movement. Two hypotheses for this effect of stimulus onset delay (SOD) were compared: first, process monitoring, that SOD simply serves as a warning interval to facilitate saccadic responses; and second, preprogramming, that saccades are preprogrammed at short SODs. In the first experiment SOD produced a decline in oculomotor latency in search similar to that seen in previous studies. In the second and third experiments, the size of the memory set in a Sternberg memory search paradigm was varied, or a mask flanking some of the search stimuli was used, to vary the processing time of each stimulus. Partial preprogramming of saccades at short delays would predict that increasing the processing time of individual stimuli would increase oculomotor latency at only short SODs. However, oculomotor latency increased equally at all SODs. In this search task, then, the SODs appeared to facilitate saccade initiation.
影响因子：
6.3
作者：
M. Just;P. Carpenter
通讯作者：
M. Just;P. Carpenter