スクロール表示とスティル表示における読み(読みと眼球運動,第22回大会シンポジウム2)

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Four experiments are reported and summarized relating to the reading of continuously scrolling text. In Experiment 1 participants read Japanese text moving pixel by pixel from left to right in a presentation window. The window size was one character in height and 1, 2, 3, 5, 7, 10, or 15 characters in width. Subjects self-adjusted the speed (rate) of scrolling characters in the window by means of key presses to achieve an individual optimum. The speed was measured and termed "Optimal Scrolling Speed" (OSS). The result showed that OSS quickly increased with the window size up to 5 characters and then gradually changed up to 15 characters. The average OSS at 7-15 characters of window-size was 6.5 characters/sec (about 150ms/character). In Experiment 2 subjects were required to detect two types of errors. The first is called "surface" error and is defined to mean searching ability of misprints. The second is contextual error and is defined to mean the comprehensive ability of the text contents. Both types of error detection were studied using the optimal speed at each window size. The results showed that neither surface nor contextual error detection is related to window size. Subjects detected context errors better than surface errors. This difference indicates that the OSS was an appropriate speed to comprehend the text. In Experiment 3 performance on the error detection tasks were examined at double speed and a half speed of the OSS. The results showed that the performance on surface error detection increased when scrolling speed decreased. However, performance on the contextual error detection did not improve at speeds slower than the OSS. This difference suggests that the OSS is the maximum speed to comprehend the text. In Experiment 4, "regression eye-movement" was studied during the reading of "continuously scrolling" text as well as of "still (or static)" text presentations. Three native groups read "Norwegian Wood" (by Haruki Murakami) in English, Chinese, and Japanese editions. a. The proportion of regression eye movement for the static text was the highest in English (12.3%), then in Japanese (6.36%) and in Chinese (2.8%). b. For scrolling text the proportion of regression was increased in all three languages: 42% in Japanese, 41.5% in Chinese and 21% in English.
2004-09-30

スクロール表示とスティル表示における読み(読みと眼球運動,第22回大会シンポジウム2)

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スポンサーリンク

スクロール表示とスティル表示における読み(読みと眼球運動,第22回大会 シンポジウム2)

スポンサーリンク

概要

著者

関連論文

スポンサーリンク

スクロール表示とスティル表示における読み(読みと眼球運動,第22回大会シンポジウム2)