听觉障碍学生与正常学生视觉识别敏度的比较研究

为了探讨听觉障碍学生和正常学生在视觉图形识别敏度上的差异,我们采用Dr.Hirsch.B.Helmut编制黑白与彩色测试卡设计了二维隐匿图形视觉搜索实验,结果表明:(1)学校、性别与正斜像之间的交互作用显著;不同学校男生对正斜像识别反应时呈现出不同的变化趋势,特别是聋校男生识别斜像的反应时明显低于普校男生;聋校中不同性别学生对正斜像识别反应时呈现不同变化趋势。(2)听障学生的视觉图像识别的敏度优于正常学生,说明了听障学生存在明显的视觉补偿作用。(3)视觉识别敏度不具有明显的性别差异。(4)听障学生和正常学生的心理旋转能力不存在显著差异。

Comparative Study on Visual Acuity of Students with and without Hearing Impairment

With the black and color cards created by Dr. Hirsch. B. Helmut, the researchers designed obscurity two-dimension visual pictures to explore the differences of visual acuity of students with and without hearing impairment. The results were: (1) Schools, genders and positive italic images had the significant interaction effects on visual acuity; male students from different schools showed different developing tendencies of response time to recognize positive italic images, the response time of male deaf students were far shorted than male hearing students; male deaf students and female deaf students also had different developing tendencies of response time. (2) The visual recognition acuity of deaf students was better than that of hearing students, which indicated deaf students exploited their visual compensational abilities. (3) No significant gender differences were showed in visual recognition acuity. (4) Deaf students and hearing students had not obvious differences in their mental rotation.