DETECTION OF PRESYMPTOMATIC ALZHEIMER DISEASE BY FMRI

本申请提出研究功能MRI、结构MRI， 和神经心理学功能在不同水平的个人， 老年痴呆症的风险。 风险组的定义如下： 家族史和载脂蛋白E等位基因状态。 主要 一种假设是，在大脑皮层活动的模式和程度， 视觉对抗命名任务将在 AD高风险和低风险受试者。调查人员还将 确定结构/解剖学差异是否存在 以及这些MRI结果是否与 神经心理功能 该应用程序解决了一个非常 AD研究的重要领域。 初步的功能磁共振成像数据 如果包括老年受试者或有AD风险的受试者，则更强。 的 使用两种不同的战略来确定中等风险群体 可能会造成一些困难和解释。 主要分析 的fMRI数据是组平均数据，而不是发布日期：04/04/1997。

This application proposes to study functional MRI, structural MRI, and neuropsychological function in individuals at different levels of risk for Alzheimer's Disease. The risk groups will be defined by family history and by apolipoprotein-E allele status. The major hypothesis is that the pattern and extent of cortical activation during a visual confrontation naming task will differ substantially between subjects at high and low risk for AD. The investigators will also determine whether structural/anatomic differences exist between the groups and whether these MRI findings correlate with neuropsychological function. This application addresses a very important area in AD research. The preliminary fMRI data would be stronger if it included elderly subjects or these at risk for AD. The use of two different strategies for identifying intermediate risk groups may pose some difficulties and interpretation. The primary analyses of fMRI data is group mean data rather date released: 04/04/1997.