高中生中阅读能力较差者的扫视跟踪技能。
Saccadic tracking skills of poor readers in high school.
作者信息
Powers Maureen, Grisham David, Riles Phillip
机构信息
Gemstone Foundation Research Institute, Rodeo, California 94572, USA.
出版信息
Optometry. 2008 May;79(5):228-34. doi: 10.1016/j.optm.2007.07.014.
BACKGROUND
Oculomotor control has been implicated as a factor when reading is poor, but few studies exist for adolescents.
METHODS
The saccadic eye movement efficiency of 684 ninth grade students, identified as poor readers in 5 California high schools, was quantified using the Developmental Eye Movement test. Frequency distributions were produced from scores on vertical and horizontal components, and gender and test-retest factors were considered during analysis.
RESULTS
Vertical times were within 1 standard deviation of normal for eighth grade. However, horizontal (saccadic) times were typical of grade 3, and the average number of errors on the horizontal test was typical of grade 2. Boys and girls performed similarly. Results of retests showed slightly improved horizontal times and fewer errors, but the grade level equivalents remained dramatically low. Overall, fewer than 10% of students scored above the 50th percentile for eighth grade.
CONCLUSION
The results indicate that poor readers in high school may be at high risk for poor saccadic tracking skill.
背景
当阅读能力较差时，眼球运动控制被认为是一个影响因素，但针对青少年的相关研究较少。
方法
使用发育性眼球运动测试对加利福尼亚州5所高中里被认定为阅读能力差的684名九年级学生的扫视眼动效率进行量化。根据垂直和水平分量的得分生成频率分布，并在分析过程中考虑性别和重测因素。
结果
八年级学生的垂直时间在正常范围的1个标准差内。然而，水平（扫视）时间与三年级学生的典型时间相当，并且水平测试中的平均错误数量与二年级学生的典型数量相当。男孩和女孩的表现相似。重测结果显示水平时间略有改善，错误减少，但年级水平当量仍然极低。总体而言，得分高于八年级第50百分位的学生不到10%。
结论
结果表明，高中阅读能力差的学生可能存在扫视跟踪技能差的高风险。
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