Demand transitions and sustained attention.
Demand transitions and sustained attention.
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需求转变和持续关注。
DOI：
10.1080/00221309.1993.9711151
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发表时间：
1993
期刊：
影响因子：
--
通讯作者：
Roger R. Rosa
中科院分区：
文献类型：
--
作者：
Jonathan P. Gluckman;J. Warm;W. N. Dember;Roger R. Rosa
美国国家研究委员会（Huey & Wickens, 1993）最近的一份报告指出，任务需求的转变是警惕性研究的一个重要维度。这个实验测试了这种转变的影响遵循一个相对简单的心理物理规则的可能性——它们的特点是对比效应。任务需求的转变是通过将受试者从单任务监控转移到双任务监控来实现的，反之亦然。这些转变产生了受试者感知和决策功能的变化，远比简单的对比效应复杂得多。需求转换问题在基础和应用层面都提出了复杂的研究挑战，值得进一步研究。
A recent report by the National Research Council (Huey & Wickens, 1993) has identified transitions in task demand as an important dimension for study in vigilance research. This experiment tested the possibility that the effects of such transitions follow a relatively simple psychophysical rule--they are characterized by contrast effects. Transitions in task demand were achieved by shifting subjects from single-task to dual-task monitoring and vice versa. These transitions produced changes in subjects' sensing and decision-making functions that were far more intricate than simple contrast effects. The demand transition issue offers a complex research challenge on both basic and applied levels and warrants further investigation.