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  • 學位論文

電腦代理人非語言行為對使用者認知與感受之影響

The Effects of Computer Agents' Nonverbal Behaviors on Users' Cognitions and Perceptions

指導教授 : 許有真
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摘要


本研究設計互動情境系統,電腦代理人以語音傳遞情境內容,並搭配不同非語言行為表現與受測者溝通。本研究自變項為「電腦代理人非語言行為」,分為無語意組、誤配組、高頻率組與控制組。「無語意」指電腦代理人所表現出之行為與情境溝通內容無關;「誤配」則表示電腦代理人行為與對話內容相反。而高頻率組則展現出大量的非語言行為;控制組幾乎沒有行為表現。實驗應變項包含兩個層面:其一為使用者認知負荷與訊息接收成效,其二為使用者主觀感受、互動滿意度與再互動意願。 本研究的結果證實不同非語言行為表現的效果在電腦代理人的應用上效果類似人際互動並對使用者造成顯著影響。誤配組與高頻率組的受測者認知負荷顯著高於其他組別,代表誤配的電腦代理人非語言行為表現造成使用者注意力分散,對訊息接收成效、使用者主觀感受、互動滿意度與再互動意願有顯著的負面影響。質性資料顯示,電腦代理人表現出高頻率的非語言行為時,除了會增加認知負荷、降低訊息傳遞成效,尚會提升部分使用者主觀感受。

並列摘要


This research explores the external stimuli to human cognition and perception and also discusses the human information reception during the interaction. The experimental system involves embodied computer agents in an interaction scenario. The agents communicate with users via vocal messages and different nonverbal behavior in distinct groups. The independent variable is “nonverbal behavior of computer agents” in four groups: non-semantics, mismatch, hyperactivity, and control. Non-semantics refers to the scenario where the behavior is irrelevant to the communication; mismatch refers to the scenario where the behavior is opposing to the communication. The computer agent in the hyperactivity group exhibits an excessive amount of behaviors. The computer agent in the control group performs no behavior. The dependent variables include “cognitive load, recall and comprehension efficiency, perception, satisfaction and further interaction will”. The experimental results verify that the effect of nonverbal behaviors on human-computer interaction is similar with interpersonal communication. The mismatch group and the hyperactivity group present a high cognitive load than the non-semantics group and the control group. The semantic-mismatched nonverbal behavior of a computer agent distracts uses’ attention and decreases user perception, satisfaction and the will of further interaction. In particular, according to the qualitative data, nonverbal behavior in high frequency not only leads to cognitive load and decrease the information communication efficiency but also creates positive and lively impression of the computer agent to users. This further improves user satisfaction.

參考文獻


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被引用紀錄


施青芳(2014)。代理人角色特質擬真與任務複雜度對 使用者認知負荷與感受之影響〔碩士論文,國立清華大學〕。華藝線上圖書館。https://doi.org/10.6843/NTHU.2014.00508

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