PSYCHOPHYSIOLOGICAL ANALYSIS OF MENTAL SLOWNESS IN AGED

充分的证据支持P300的潜伏期 人类事件相关脑电位的分量与 刺激评估和分类过程，并相对 独立于响应选择和执行过程。我们将使用 P300延迟，以更详细地了解无处不在的 老年人行为迟缓。该项目将在 与拉什-长老会-ST的合作。芝加哥的卢克医疗中心。 这种合作将带来必要的技能以及 需要的对象群体，在其中开发一组 心理生理测试中P300潜伏期与 反应时间。这些测试中的每一个都将评估特定的 人类信息处理的阶段或阶段。测试将会是 香槟-乌尔巴纳的年轻人和“正常对照” 一群老年个体在正常对照中聚集在 项目“脑老化”(3P0-AG-00905)，网址： 芝加哥的拉什长老会医学院。结果应该会让我们 以确定信息的几个阶段中的哪个(如果有的话) 加工过程特别受老化的影响。

Ample evidence supports the assertion that the latency of the P300 component of the human event-related brain potential is proportional to stimulus evaluation and categorization processes and is relatively independent of response selection and execution processes. We shall use P300 latency to gain a more detailed understanding of the ubiquitous slowness of behavior in the aged. This project will be conducted in collaboration with Rush-Presbyterian-ST. Luke's Medical Center in Chicago. Such collaboration will bring together the necessary skills as well as the required subject population in which to develop a battery of psychophysiological tests in which P300 latency can be dissociated from reaction time. Each of these tests will assess the duration of a specific phase or stage of huma information processing. The tests will be administered to young adults in Champaign-Urbana and to the "normal control group" of aged individuals in the "normal controals" assembled in the Program Project "Cerebral Decline in Aging" (3P0-AG-00905) at Rush-Presbyterian Medical School in Chicago. The results should allow us to determine which, if any, of the several stages of information processingis specifically affected by aging.