【作者】 崔艳青；

【导师】 沈模卫；

【作者基本信息】 浙江大学 ， 应用心理学， 2002， 硕士

【摘要】 语音超文本是利用超文本组织信息的语音系统。该系统能满足视觉缺失或视觉受限场合用户的特殊需要,具有广泛的应用前景。语音超文本界面的工效学研究直接推动了界面的优化设计,从而促进了语音超文本系统的发展。本研究试图对语音超文本系统中信息组织与呈现进行实验探索,以期为语音超文本界面的优化设计提供心理学依据。 本研究包括三个实验。实验一主要研究语音超链接数目与被试作业绩效之间的关系,以确定语音超链接的广度;实验二考察语音超链接时间间隔和输入指示对被试绩效的作用模式;实验三探索视觉辅助信息对语音超文本作业绩效的影响。实验在模拟的语音超文本系统中进行,以正确率和完成任务时间作为评价被试绩效的依据。 本研究获得以下结论: 1)语音超链接数目应该控制在3个以内; 2)当语音超链接数目大于3时,被试选择作业中存在目标位置效应,对语音超链接系列两端的项目作业绩效最高,对中间的项目作业绩效最低; 3)语音超链接时间间隔的适当增大可以提高被试作业的正确率; 4)输入指示对绩效的作用受到呈现通道的影响,使用听觉通道显示时,输入指示降低了被试的作业绩效,但是使用视觉通道时,它对被试绩效有促进作用; 5)语音超链接数目指示可以提高被试完成任务的绩效。更多还原

【Abstract】 Audio-hypertext is an auditory system, which presents speech information with hypertext structure. And it can be widely used in the circumstances where visual information is limited or cannot be used such as visually impaired users. In order to promote this audio-hypertext system into practical use, many researches of user interfaces for the system need to be done. This study tried to provide some guidelines of user interface design by testing the effectiveness of different information organizing structures and presenting methods in the audio-hypertext.Three experiments were conducted in this study. The first experiment tested the effect of audio hyperlink number on user performance. Meanwhile the breadth in the audio-hyperlink design was investigated. The second experiment was on the effect of timeout and auditory prompts on user performance. The last one was on the effect of visual aids on user performance.Main conclusions of this research are as following:1) Number of hyperlink in audio hypertext systems should not be more than three.2) If the number of audio-hyperlink was more than three, the serial-position effect (recency effect and primacy effect) in the subjects’ performance was found.3) Within 800 ms, the longer the timeout between audio-hyperlinks, the better the subjects’ performance.4) Effects of input-prompt depended much on modals. Input-prompt from auditory modal interfered with subjects’ operation, while extra visual aids enhanced their performance.5) Subjects’ performance was significantly improved if the number of audio-hyperlink was prompted before the audio-hypertext presentation.更多还原