Black F W
J Clin Psychol. 1986 Sep;42(5):770-82. doi: 10.1002/1097-4679(198609)42:5<770::aid-jclp2270420516>3.0.co;2-p.
Digit repetition was investigated in samples of unilaterally (N = 87) and bilaterally (N = 75) brain-damaged adults. The study was designed to investigate the hemispheric and neuropsychological factors that underlie performance on these two dissimilar tasks. Digit repetition was disproportionately depressed in such patients, especially those with left hemisphere lesions. The incidence of individually impaired digit repetition performance, especially of digits backward, was significantly higher than in normals, again particularly within the left hemisphere sample. However, impaired digit repetition was not invariably associated with brain dysfunction. The data suggest, but do not confirm, a differential function hypothesis, as well as a unilateral hemispheric hypothesis that underlies the ability to repeat forward and backward digits; this finding is consistent with some previous literature. Group performance showed considerable overlap, which limited the possibility of demonstrating a double dissociation between digits forward and verbal measures, and digits backward and nonverbal factors. Digit repetition in brain-damaged patients appears to have some theoretical value, but limited clinical utility.
在单侧脑损伤（N = 87）和双侧脑损伤（N = 75）的成年患者样本中，对数字复述能力进行了研究。该研究旨在探究这两项不同任务表现背后的半球和神经心理学因素。在这类患者中，尤其是左半球受损的患者，数字复述能力受到了不成比例的抑制。个体数字复述表现受损的发生率，尤其是倒序数字复述受损的发生率，显著高于正常人群，同样在左半球样本中尤为明显。然而，数字复述受损并非总是与脑功能障碍相关。数据表明但未证实一种差异功能假说，以及一种作为正向和倒序数字复述能力基础的单侧半球假说；这一发现与之前的一些文献一致。组间表现存在相当大的重叠，这限制了证明正向数字与言语测量、倒序数字与非言语因素之间双重解离的可能性。脑损伤患者的数字复述似乎具有一定的理论价值，但临床实用性有限。
