听觉似动的三维距离估计:明眼生与盲生的比较研究

为探究ISI、音频和教育背景对盲生空间距离估计能力是否有影响，本研究采用2(教育背景:香港/内地)×2(组别:明眼生/盲生)× 2(ISI:50ms /100ms)× 3(声音频率:低音/中音/高音)实验设计，随机抽取32名盲生和32名明眼生参加实验，在听觉似动条件下，利用E-prime对被试进行实验。结果显示:(1)明眼生与盲生对三维距离感知的机制不同；(2)ISI、音频对被试距离感知有显著影响；(3)教育背景对被试距离估计的影响差异不显著。

Study on 3-Dimensional Distance Estimation Under the Condition of Auditory Apparent Motion:A Comparative Study between Blind Students and Normal Students

To figure out whether the ISI, audio frequency and educational systems have an influence on the blind people's ability of distance estimation, the researcher conducted an experiment with E-prime under the condition of auditory apparent motion. The participants are made up of 32 blind students and 32 normal students which are selected randomly from different educational systems (mainland / Hong Kong). The independent variable are groups (the blind / the normal), the between-subject variable, and ISI (50ms / 100ms) and sound frequencies (low pitch / medium pitch / high pitch), the within-subject variables. It can be concluded that: the 3-dimensional distance estimation mechanism of the blind students is different from that of the normal students; ISI and audio frequencies have a significant influence on students' ability of distance estimation; the education system have little impact on students' ability of estimated distance.