Spatial frequency sensitivity differences between adults of good and poor reading ability
Spatial frequency sensitivity differences between adults of good and poor reading ability
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DOI：
10.1167/iovs.03-1247
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发表时间：
2005-06-01
影响因子：
4.4
通讯作者：
Jordan, TR
中科院分区：
文献类型：
--
作者：
Patching, GR;Jordan, TR
目的.为了确定是否正常成人的良好和不良的阅读能力表现出不同的模式，空间频率的敏感性，如以前发现之间的障碍和非障碍的控制对象。对96名正常、无睡眠障碍的成年人的视力、空间频率敏感度和阅读能力进行了评估。参与者根据阅读能力进行排名。前50%的人被列为好读者，后50%的人被列为差读者。尽管视力没有差异，但好的和差的读者表现出不同的空间频率敏感度模式。特别是，与良好的阅读者相比，较差的阅读者对2 - 6 cyc/deg的空间频率的敏感性降低，在较低或较高的空间频率下没有发现敏感性差异。研究结果表明，空间频率敏感性差异发现以前之间的dyslephilis和nondyslephilis控制可以扩展到正常（nondyslephilis）成人人口。
PURPOSE. To determine whether normal adults of good and poor reading ability exhibit different patterns of sensitivity to spatial frequency, as previously found between dyslexic and nondyslexic control subjects.METHODS. The visual acuity, spatial frequency sensitivity, and reading ability of 96 normal, nondyslexic adults was assessed. Participants were ranked according to reading ability. The top 50% were classified as good readers and the bottom 50% as poor readers.RESULTS. Despite no differences in visual acuity, good and poor readers showed different patterns of spatial frequency sensitivity. In particular, compared with good readers, poor readers showed reduced sensitivity to spatial frequencies between 2 and 6 cyc/deg, and no differences in sensitivity were found at lower or higher spatial frequencies.CONCLUSIONS. The findings indicate that spatial frequency sensitivity differences found previously between dyslexic and nondyslexic controls can extend to the normal (nondyslexic) adult population.