Harness B Z, Bental E, Carmon A
Isr J Med Sci. 1976 Mar;12(3):215-24.
Cognition and performance of patients with localized and diffuse brain damage was evaluated through the application of objective perceptual testing. A series of visual perceptual and verbal tests, memory tests, as well as reaction time tasks were administered to the patients by logic programming equipment. In order to avoid a bias due to communicative disorders, all responses were motor, and achievement was scored in terms of correct identification and latencies of response. Previously established norms based on a large sample of non-brain-damaged hospitalized patients served to standardize the performance of the brain-damaged patient since preliminary results showed that age and educational level constitute an important variable affecting performance of the control group. The achievement of brain-damaged patients, corrected for these factors, was impaired significantly in all tests with respect to both recognition and speed of performance. Lateralized effects of brain damage were not significantly demonstrated. However, when the performance was analyzed with respect to the locus of visual input, it was found that patients with right hemispheric lesions showed impairment mainly on perception of figurative material, and that this deficit was more apparent in the left visual field. Conversely, patients with left hemispheric lesions tended to show impairment on perception of visually presented verbal material when the input was delivered to the right visual field.
通过客观感知测试对局限性和弥漫性脑损伤患者的认知与表现进行了评估。通过逻辑编程设备对患者进行了一系列视觉感知和语言测试、记忆测试以及反应时间任务。为避免因交流障碍产生偏差，所有反应均为动作反应，根据正确识别和反应潜伏期对成绩进行评分。基于大量非脑损伤住院患者样本建立的先前规范用于使脑损伤患者的表现标准化，因为初步结果表明年龄和教育水平是影响对照组表现的重要变量。校正这些因素后脑损伤患者在所有测试中的识别和表现速度方面的成绩均显著受损。未显著显示出脑损伤的偏侧化效应。然而，当根据视觉输入部位分析表现时，发现右半球病变患者主要在形象材料感知方面受损，且这种缺陷在左视野更明显。相反，当输入传递到右视野时，左半球病变患者往往在视觉呈现的语言材料感知方面受损。
