Aylward E H
Brain Lang. 1984 Jul;22(2):221-31. doi: 10.1016/0093-934x(84)90091-9.
It has been proposed that in examining hemispheric dominance in dyslexics, investigators must make a distinction between subtypes of the disorder. Using the Denver Reading and Spelling Test, 72 dyslexics were divided into three groups: dysphonetics, dyseidetics, and nonspecifics. Three measures of hemispheric dominance were administered: a dichotic listening test, a hemiretinal test with linguistic stimuli, and a hemiretinal test with spatial stimuli. Results indicated that the three subgroups of dyslexics did not differ from one another on measures of hemispheric dominance. Dyslexics, taken as a group, tended to show an exaggerated right ear advantage on the dichotic listening test, in comparison with that of controls. It was proposed that the dichotic listening test may be confounded by attentional deficits in the dyslexics.
有人提出，在研究诵读困难症患者的半球优势时，研究人员必须区分该病症的不同亚型。使用丹佛阅读和拼写测试，72名诵读困难症患者被分为三组：语音障碍型、视觉障碍型和非特异性型。进行了三项半球优势测量：双耳分听测试、带有语言刺激的半视网膜测试和带有空间刺激的半视网膜测试。结果表明，诵读困难症的这三个亚组在半球优势测量上彼此没有差异。与对照组相比，作为一个群体的诵读困难症患者在双耳分听测试中往往表现出夸张的右耳优势。有人提出，双耳分听测试可能会因诵读困难症患者的注意力缺陷而受到干扰。
