Beglinger Leigh J, Duff Kevin, Moser David J, Cross Stephen A, Kareken David A
Department of Psychiatry, University of Iowa College of Medicine, Iowa City, IA 52242-1000, USA.
Arch Clin Neuropsychol. 2009 Sep;24(6):607-18. doi: 10.1093/arclin/acp050. Epub 2009 Aug 13.
Memory assessment is an important component of a neuropsychological evaluation, but far fewer visual than verbal memory instruments are available. We examined the preliminary psychometric properties and clinical utility of a novel, motor-free paper and pencil visuospatial memory test, the Indiana faces in places test (IFIPT). The IFIPT and general neuropsychological performance were assessed in 36 adults with amnestic mild cognitive impairment (aMCI) and 113 older adults with no cognitive impairment at baseline, 1 week, and 1 year. The IFIPT is a visual memory test with 10 faces paired with spatial locations (three learning trials and non-cued delayed recall). Results showed that MCI participants scored lower than controls on several variables, most notably total learning (p < .001 at all three time points), delayed recall (baseline p = .03, 1 week p < .001, 1 year p < .001), and false-positive errors (range p = .03 to <0.001). The IFIPT showed similar test-retest reliability at 1-week and 1-year follow-up to other neuropsychological tests (r = 0.71-0.84 for MCI and 0.53-0.72 for controls). Diagnostic accuracy was modest for this sample (areas under the receiver operating characteristic curve between 0.64 and 0.66). Preliminary psychometric analyses support further study of the IFIPT. The measure showed evidence of clinical utility by demonstrating group differences between this sample of healthy adults and those with MCI.
记忆评估是神经心理学评估的重要组成部分,但可用的视觉记忆工具比言语记忆工具少得多。我们研究了一种新颖的、无需运动的纸笔视觉空间记忆测试——印第安纳地点面孔测试(IFIPT)的初步心理测量特性和临床效用。在36名患有遗忘型轻度认知障碍(aMCI)的成年人和113名在基线、1周和1年时无认知障碍的老年人中评估了IFIPT和一般神经心理学表现。IFIPT是一种视觉记忆测试,有10张面孔与空间位置配对(三次学习试验和非提示延迟回忆)。结果显示,MCI参与者在几个变量上的得分低于对照组,最明显的是总学习量(在所有三个时间点p <.001)、延迟回忆(基线p =.03,1周p <.001,1年p <.001)和假阳性错误(范围p =.03至<0.001)。IFIPT在1周和1年随访时显示出与其他神经心理学测试相似的重测信度(MCI组r = 0.71 - 0.84,对照组r = 0.53 - 0.72)。该样本的诊断准确性一般(受试者操作特征曲线下面积在0.64至0.66之间)。初步心理测量分析支持对IFIPT进行进一步研究。该测量方法通过证明健康成年人样本与MCI患者之间的组间差异显示出临床效用的证据。