What matters in the cued task-switching paradigm: Tasks or cues?
What matters in the cued task-switching paradigm: Tasks or cues?
复制标题
在提示任务切换范式中什么最重要：任务还是提示？
DOI：
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发表时间：
2006
影响因子：
3.5
通讯作者：
U. Mayr
中科院分区：
文献类型：
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作者：
U. Mayr
Schneider和Logan（2006）最近表明，提示切换和任务切换的成本对提示切换和任务切换的相对概率很敏感。由此他们得出结论，任务切换成本反映的是线索-线索转换的启动，而不是实际的任务切换操作。然而，由于该设计混淆了特定线索转换的概率和任务切换的概率，因此结果也可以反映任务切换级别的调整。本实验（N = 80）将线索启动说的关键预测（即高概率线索转移的成本小于低概率线索转移的成本）与切换概率说的主要预测（即切换概率，与特定线索转移无关，决定切换成本）进行对比。虽然线索启动预测被拒绝了，但概率解释的一个特定版本——受试者对给定线索切换的任务概率敏感——得到了充分证实。因此，任务实际上是决定任务切换成本的关键表征单位。
Schneider and Logan (2006) recently showed that cue-switch and task-switch costs are sensitive to the relative probability of cue switches versus task switches. From this they concluded that taskswitch costs reflect priming of cue-cue transitions rather than actual task-switching operations. However, because this design confounded probability of specific cue transitions with probability of task switches, the results could also reflect task-switch-level adjustments. The present experiment (N = 80) pits the critical prediction of the cue-priming account, namely that costs for high-probability cue-cue transitions are smaller than for low-probability cue-cue transitions, against the main prediction of the switch-probability account, namely that switch probability, irrespective of specific cue-cue transitions, determines switch costs. Whereas the cue-priming prediction was rejected, a specific version of the probability account—that subjects are sensitive to the probability of a task switch, given a cue switch—was fully confirmed. Thus, tasks are in fact the critical representational units that determine task-switch cost.
影响因子：
4.1
作者：
Mayr, U;Keele, SW
通讯作者：
Keele, SW