Niccum N, Rubens A B, Speaks C
J Speech Hear Res. 1981 Dec;24(4):526-34. doi: 10.1044/jshr.2404.526.
Sixteen aphasic patients were given five different verbal dichotic listening tests. The differences among results obtained on a digit test, a high-contrast word test (perception of either vocalic or consonantal information was sufficient for accurate responses), and a vowel-word test (perception of vocalic information was required for accurate responses) were not significant. However, a consonant-word test resulted in significant decreases in both left- and right-ear scores and an increase in the performance levels, and the magnitude of difference scores between ears was limited by low levels of performance for the majority of patients. Attempts to identify relations between patterns of performance on dichotic listening tests and radiographic evidence of lesion location were most profitable when they involved the right-ear (RE) scores on the digit test. The discontinuity in the distribution of these scores corresponded to the presence of absence of damage to the geniculo-temporal system. That is, when the geniculo-temporal system was spared, the RE scores exceeded 75% correct, whereas damage to the geniculo-temporal system was associated with RE scores of less than 50% correct.
16名失语症患者接受了5种不同的言语双耳分听测试。在数字测试、高对比度单词测试（对元音或辅音信息的感知足以做出准确反应）和元音单词测试（准确反应需要对元音信息的感知）中获得的结果差异不显著。然而，辅音单词测试导致左耳和右耳得分显著下降，表现水平提高，并且由于大多数患者的表现水平较低，双耳之间差异得分的幅度受到限制。当涉及数字测试中的右耳（RE）得分时，试图确定双耳分听测试表现模式与病变位置的放射学证据之间的关系最有成效。这些得分分布的不连续性与膝状颞叶系统是否受损相对应。也就是说，当膝状颞叶系统未受损时，右耳得分正确率超过75%，而膝状颞叶系统受损则与右耳得分正确率低于50%相关。
