Lack of free choice reveals the cost of multiple-target search within and across feature dimensions
Lack of free choice reveals the cost of multiple-target search within and across feature dimensions
复制标题
缺乏自由选择揭示了特征维度内和跨特征维度的多目标搜索的成本
DOI：
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发表时间：
2018
期刊：
影响因子：
--
通讯作者：
C. Olivers
中科院分区：
文献类型：
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作者：
E. Ort;Johannes Jacobus Fahrenfort;C. Olivers
必须寻找多个目标通常会导致转换成本。然而，使用具有多个颜色定义目标的注视条件眼动追踪范式，我们最近表明，转换成本的出现取决于观察者是否可以选择目标或目标是强加给他们的。在这里，我们使用类似的范例，测试了这些发现是否可以推广到跨不同特征维度指定目标的情况。我们指示参与者同时寻找，然后专注于出现在干扰物中的两个可能的目标之一。目标被定义为两种颜色，两种形状，或者一种颜色和一种形状。在一种情况下，每次显示只有两个目标中的一个可用，因此选择是强加的。在另一种情况下，两个目标都将出现在每个显示中，这给了观察者自由选择搜索什么。与我们早期的研究结果一致，当目标被强加时，切换成本就会出现，而当目标选择是自由的时候，无论目标被定义的维度如何，都不会出现切换成本。结果与多目标搜索中不同控制模式的操作一致，当需要被动控制时，开关成本就会出现，而当显示允许主动控制时，开关成本就会减少或不存在。
Having to look for multiple targets typically results in switch costs. However, using a gaze-contingent eyetracking paradigm with multiple color-defined targets, we have recently shown that the emergence of switch costs depends on whether observers can choose a target or a target is being imposed upon them. Here, using a similar paradigm, we tested whether these findings generalize to the situation in which targets are specified across different feature dimensions. We instructed participants to simultaneously search for, and then fixate, either of two possible targets presented among distractors. The targets were defined as either two colors, two shapes, or one color and one shape. In one condition, only one of the two targets was available in each display, so that the choice was imposed. In the other condition, both targets would be present in each display, which gave observers free choice over what to search for. Consistent with our earlier findings, switch costs emerged when targets were imposed, whereas no switch costs emerged when target selection was free, irrespective of the dimension in which the targets were defined. The results are consistent with the operation of different modes of control in multiple-target search, with switch costs emerging whenever reactive control is required and being reduced or absent when displays allow for proactive control.
拒绝模板：配置注意力以忽略任务 - iRrelevant功能。
DOI：
10.1037/a0027885
发表时间：
2012-06
影响因子：
2.1
作者：
Arita, Jason T.;Carlisle, Nancy B.;Woodman, Geoffrey F.
通讯作者：
Woodman, Geoffrey F.
影响因子：
2
作者：
Reeder, Reshanne R.;Olivers, Christian N. L.;Pollmann, Stefan
通讯作者：
Pollmann, Stefan