Saccadic eye movements and dual-task interference.
Saccadic eye movements and dual-task interference.
复制标题
眼球扫视运动和双任务干扰。
DOI：
10.1080/14640749308401067
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发表时间：
1993
期刊：
影响因子：
--
通讯作者：
Hoffman,J
中科院分区：
文献类型：
--
作者：
Pashler,H;Carrier,M;Hoffman,J
四个双任务的实验需要一个快速手动选择反应的音调在一个时间接近扫视眼动任务。在实验1中，受试者对一个单一的瞬态扫视;在实验2中，红色和绿色的颜色补丁被呈现给左和右，和扫视是以往的补丁是预先指定的目标颜色。眼球运动有一些减慢，但两个任务组合都没有表现出典型的双任务干扰（“心理不应效应”）。然而，当扫视的方向取决于中心色块是红色还是绿色时，或者当扫视指向左边和右边的两个大数字中数值较高的数字时，观察到更多的干扰。实验5研究了一个声乐第二任务，进行比较。这些发现可能反映了这样一个事实，即眼球运动可以由两个独立的大脑系统--上级丘和前眼区--来指挥;来自后眼区而不是前眼区的命令可能会被同时进行的不相关的感觉运动任务所延迟。
Four dual-task experiments required a speeded manual choice response to a tone in a close temporal proximity to a saccadic eye movement task. In Experiment 1, subjects made a saccade towards a single transient; in Experiment 2, a red and a green colour patch were presented to left and right, and the saccade was to which ever patch was the pre-specified target colour. There was some slowing of the eye movement, but neither task combination showed typical dual-task interference (the “psychological refractory effect”). However, more interference was observed when the direction of the saccade depended on whether a central colour patch was red or green, or when the saccade was directed towards the numerically higher of two large digits presented to the left and the right. Experiment 5 examined a vocal second task, for comparison. The findings might reflect the fact that eye movements can be directed by two separate brain systems–-the superior colliculus and the frontal eye fields; commands from the latter but not the former may be delayed by simultaneous unrelated sensorimotor tasks.