Taylor R, O'Carroll R
Department of Clinical Neurosciences, Western General Hospital, Edinburg, Scotland, UK.
Br J Clin Psychol. 1995 May;34(2):223-8. doi: 10.1111/j.2044-8260.1995.tb01456.x.
The Cognitive Estimation Test (CET) was devised by Shallice & Evans (1978) in an attempt to quantify the tendency observed in some patients with frontal lobe lesions to produce bizarre estimates in response to questions to which people do not usually know exact answers (e.g. 'what is the height of a double-decker bus?'), despite performing normally on standard intelligence tests. In the present study, the CET performance of a large number of patients suffering from head injury, brain tumour, ruptured aneurysm (anterior communicating artery and other), multiple sclerosis, dementia, encephalitis, Korsakoff's syndrome and anxiety/depression were compared with CET scores from 150 healthy controls. Patients with Korsakoff syndrome demonstrated significantly impaired CET performance. A subgroup of patients with discrete frontal lesions was compared with a group with localized non-frontal lesions. No significant difference in CET performance was observed between anterior and posterior lesioned patients. The sensitivity of the CET to anterior brain dysfunction is called into question by the present findings.
认知估计测试（CET）由沙利思和埃文斯于1978年设计，旨在量化一些额叶病变患者的倾向，这些患者在回答人们通常不知道确切答案的问题（例如“双层巴士有多高？”）时会给出奇怪的估计，尽管他们在标准智力测试中表现正常。在本研究中，将大量患有头部损伤、脑肿瘤、动脉瘤破裂（前交通动脉及其他）、多发性硬化症、痴呆症、脑炎、科萨科夫综合征以及焦虑/抑郁症的患者的CET表现，与150名健康对照者的CET分数进行了比较。患有科萨科夫综合征的患者表现出明显受损的CET表现。将一组有离散额叶病变的患者与一组有局限性非额叶病变的患者进行了比较。在前额叶病变和后额叶病变患者之间，未观察到CET表现有显著差异。本研究结果对CET对前脑功能障碍的敏感性提出了质疑。
