PSYCHOPHYSIOLOGICAL ANALYSIS OF MENTAL SLOWNESS IN AGED

有充分的证据支持这一论断，即P300的潜伏期 人类事件相关脑电位的分量与 刺激评价和分类过程， 独立于响应选择和执行过程。 我们将使用 P300延迟，以获得更详细的了解无处不在的 老年人行为迟缓。 该项目将在 与芝加哥的拉什长老会-圣卢克医疗中心合作。 这种合作将汇集必要的技能以及 所需的受试者人群，在其中开发一组 P300潜伏期可以与 反应时间 这些测试中的每一个都将评估特定的 人类信息处理的一个阶段。 测试将 在Champaign-Urbana的年轻人和“正常对照”中， 组”的老年人在“正常对照”聚集在 计划项目“衰老中的大脑衰退”（3 P0-AG-00905）， 芝加哥的拉什长老会医学院。 结果应该能让我们 以确定几个信息阶段中的哪一个，如果有的话， 加工过程特别受到老化的影响。

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.