螢幕上捲動式動態資訊呈現設計對使用者之視覺績效與視覺疲勞之影響

Effects of VDT display scrolling of dynamic information on visual performance and fatigue.

莊婷婷(Ting-Ting Chuang)

指導教授 ： 林久翔

中原大學/工學院/工業工程研究所/碩士(2003年)

https://doi.org/10.6840/cycu200300398

摘要

使用者在閱讀資訊常會利用滑鼠控制捲軸，調整資訊內容中的文字位置，達到舒適且易讀的方式獲得資訊，可見由捲軸控制文字的移動方式，對於受測者閱讀資訊獲得較佳的績效及舒適度，是個關鍵的論題。
本研究設計實驗來探討捲動式動態資訊呈現設計對使用者之視覺績效與視覺疲勞之相關問題。以搜尋作業單獨探討捲動式動態資訊的設計因子對於受試者視覺績效及視覺疲勞的影響。此研究探討字體 (12點、14點)、字型 (細明體、標楷體)與捲動頻率 (0.1行/次、0.5行/次、1行/次、2行/次)對視覺績效 (依據應變數：漏失率、眼球跳動)及視覺疲勞 (依據應變數：眨眼率、閃光融合閾值、視力、主觀評量)之影響。
研究結果的兩種字體 (12點、14點)對於捲動式動態資訊之視覺績效及視覺疲勞皆沒有顯著影響，所以捲動式動態資訊設計者不必擔心使用字體對動態資訊接收會有很大不同的表現。兩種字型 (細明體、標楷體)對於捲動式動態資訊之視覺績效及視覺疲勞的顯著因子，字型為標楷體時受測者在視覺績效及視覺疲勞有較好的表現，因此，本研究建議捲動式動態資訊設計者應該採用字型標楷體呈現資訊。四種捲動頻率對於捲動式動態資訊之視覺績效及視覺疲勞的顯著因子，當捲動頻率為2行/次在視覺績效及視覺疲勞兩方面，表現都是最差的。因此，本研究建議捲動式動態資訊設計者避免以捲動頻率為2行/次作為傳達動態資訊之捲動方式。

關鍵字

視覺疲勞 ； 視覺績效 ； 字型 ； 捲動頻率 ； 字體

並列摘要

People often adjust the text using the scrolling bar when they study information on Visual Display Terminal (VDT) up and down in the viewing window. In using the scrolling bar, they use the mouse to move the text. So, scrolling was a key activity for users to reach best performance and comfort.
An experiment was planned in this study to investigate the effect of the dynamic information design on visual performance and visual fatigue. Dynamic information was presented with a scrolling window. The experiment investigates the design factor of the scrolling bar that may affect the visual performance and visual fatigue in searching the target word within a text. The design factors are the size (12pt, 14pt), fonts (Thin-ming, Biao-kai), and scrolling frequency (0.1row per move, 0.5 row per move, 1 row per move, 2 row per move). Visual performance and visual fatigue were measured by miss rate, saccade, blink, critical fusion frequency (CFF), vision, and subjective measures.
The results of the experiment were as follow. The two sizes (12pt, 14pt) had no significant effects on the visual performance and visual fatigue. The two fonts (Thin-ming, Biao-kai) had significant effects on the visual performance and visual fatigue. Biao-kai font had the best performance in dynamic information scrolling. The scrolling frequency had significant effects on the visual performance and visual fatigue. When the scrolling frequency was at 2 row per move, it had the worse performance in dynamic information scrolling.

並列關鍵字

visual fatigue ； visual performance ； font ； scrolling frequency ； size

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