断続的振動呈示による文字表現手法

抄録

In the present study, we proposed a new text presentation method using two oscillators. To present one character in kana (Japanese syllabary characters), one oscillator presents the number of consonant and subsequently the other oscillator presents the number of vowel by the number of times in vibration. Three experiments were conducted to confirm whether human can recognize characters, words and sentences presented with this method, and to determine optimal stimulus duration and intervals. In experiment 1, the results showed that subjects can understand character information properly with little practice when the duration and the ISI were over 400ms. The total time of duration and ISI determined the character recognition accuracy. The recognition accuracy increases with SOA by 400ms, suggesting that 400ms is the optimal SOA on this method. In the second experiment, the results showed that subjects can recognize words having three or four characters in spite there are individual differences. Finally, we confirmed whether this method is also available for taking messages of approximately 10 Japanese syllabaries. Although stimuli sentences were presented only one time, and subjects did not have an extensive practice, the results showed that the worst accuracy reached 50%.