Mack J L, Levine R N
Cortex. 1981 Dec;17(4):515-31. doi: 10.1016/s0010-9452(81)80059-7.
Patients with left and right unilateral hemispheric lesions were compared on the Form Assembly Task, a visual construction task requiring perceptual but not executive, motor, or verbal skills. Right lesioned patients were inferior to lefts and normals in both degree and frequency of impairment. Performances on the assembly task and two visual discrimination tasks were correlated among right but not left lesioned patients. Left lesioned patients took significantly longer to achieve maximum level of performance than either rights or normals. Neither sex nor duration of lesion affected Form Assembly performance. Results were consistent with the hypothesis that visual perceptual deficits underlie constructional difficulties among right but not left lesioned patients.
对患有左侧和右侧单侧半球损伤的患者进行了图形组装任务比较，这是一项视觉构建任务，需要感知能力，但不需要执行、运动或语言技能。右侧损伤患者在损伤程度和频率上均不如左侧损伤患者和正常人。在右侧损伤患者中，组装任务和两项视觉辨别任务的表现存在相关性，而在左侧损伤患者中则不存在。与右侧损伤患者或正常人相比，左侧损伤患者达到最高表现水平所需的时间明显更长。性别和损伤持续时间均未影响图形组装表现。结果与以下假设一致：视觉感知缺陷是右侧损伤而非左侧损伤患者出现构建困难的基础。
