Fast or safe?
Fast or safe?
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快速还是安全？
DOI：
10.1145/1978942.1979009
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发表时间：
2011
期刊：
影响因子：
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通讯作者：
Brumby D
中科院分区：
文献类型：
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作者：
Brumby D
使用音频输出的车载设备已经被证明比传统的图形用户界面更不容易分心，但使用起来可能会很麻烦和缓慢。在这篇文章中，我们报告了一个实验，它展示了这些性能特征如何影响人们在多任务情况下是否会选择使用音频接口。在驾驶模拟车辆时，参与者必须在一小段文字中找到信息源。文本被呈现在可视界面上，或者使用文本到语音的音频界面。每项任务的相对重要性各不相同。采用非选择/选择范式，参与者首先获得两个界面的经验，然后才能选择在以后的试验中使用哪个界面。在非选择阶段测量的与界面的交互作用的特征以及每项任务的相对重要性对在选择阶段选择哪种输出方式有影响。优先处理次要任务的参与者倾向于选择(速度更快但更分散注意力的)视觉界面，而不是音频界面，结果是车道保持性能较差。这项工作展示了在多任务环境中，用户的任务目标将如何影响使用多模式设备的通道选择。
In-car devices that use audio output have been shown to be less distracting than traditional graphical user interfaces, but can be cumbersome and slow to use. In this paper, we report an experiment that demonstrates how these performance characteristics impact whether people will elect to use an audio interface in a multitasking situation. While steering a simulated vehicle, participants had to locate a source of information in a short passage of text. The text was presented either on a visual interface, or using a text-to-speech audio interface. The relative importance of each task was varied. A no-choice/choice paradigm was used in which participants first gained experience with each of the two interfaces, before being given a choice on which interface to use on later trials. The characteristics of the interaction with the interfaces, as measured in the no-choice phase, and the relative importance of each task, had an impact on which output modality was chosen in the choice phase. Participants that prioritized the secondary task tended to select the (faster yet more distracting) visual interface over the audio interface, and as a result had poorer lane keeping performance. This work demonstrates how a user's task objective will influence modality choices with multimodal devices in multitask environments.