LONGITUDINAL STUDIES OF ADULT COGNITIVE DEVELOPMENT

西雅图纵向研究（SLS）调查了 成年人28年的发展将延长到 另一个七年的间隔，包括收购第六波 面板 核心项目支持面板和数据的维护 档案 四个分项目将研究扩展到新的方向; (1)一项家族相似性研究将招募900名儿童和600名 目前和以前的SLS参与者的兄弟姐妹，调查 能力状态的代际变化，并检查 亲子和兄弟姐妹在认知能力方面的相关性，而不是 在成年人中检查的子宫内膜。 (2)健康史研究包括 对（a）疾病， 智力的稳定和下降，以及（B）之间的关系 疾病的发生和认知训练的有效性 智力衰退的补救措施。 将更新健康史 对于1983-85周期评估的所有受试者，以及 在建议的一九九零至九二年度评估的纵向科目。 （三）、 认知功能障碍的长期影响的7年随访研究 培训和实践将调查这些干预措施如何影响 认知老化的水平和速度。 约300人参加 将接受5小时的归纳推理认知培训，或 空间定向以及5小时的前测/后测组合。 将用大约200个匹配的对照来评估实践效果 参与者 认知训练中的队列效应， 简短的加强培训程序以及将培训转移到真实的 生活任务也将被检查。 (4)第六波的纵向 认知功能的研究将允许进一步研究 人口变化对成人认知发展的影响 婴儿潮前和婴儿潮后的人群。 在这项研究中，大约1000 将对纵向受试者进行重新测试，一个由650名受试者组成的新小组 将首先进行5小时的心理测试。 这 研究将产生适合于七年评估的数据， 能力因素结构的纵向变化 到了老年。

The Seattle Longitudinal Study (SLS) which has investigated cognitive development in adults over a 28 year period is to be extended over another seven-year interval including the acquisition of a sixth wave panel. The core project supports the maintenance of panels and data archives. The four subprojects extend the study into new directions; (1) A family resemblance study will recruit 900 children and 600 siblings of current and former SLS participants, to investigate generational shifts in ability status across generations, and to examine parent-offspring and sibling correlations in cognitive abilities, not heitherto examined in adults. (2) A health history study involves secondary data analyses of the relationship between (a) disease, intellectual stability and decline, and (b) of the relationship between the occurrence of disease and effectiveness of cognitive training in the remediation of intellectual decline. Health histories will be updated for all subjects assessed in the 1983-85 cycle, as well as for the longitudinal subjects to be assessed in the proposed 1990-92 cycle. (3) A seven-year follow-up study on the long-term effects of cognitive training and practice will investigate how such interventions affect both level and rate of cognitive aging. Approximately 300 participants will receive 5 hours of cognitive training on Inductive Reasoning or Spatial Orientation as well as a 5 hour pretest/ posttest battery. Practice effects will be assessed with approximately 200 matched control participants. Cohort effects in cognitive training, the effectiveness of brief booster training procedures and transfer of training to real life tasks will also be examined. (4) A sixth wave of the longitudinal study of cognitive functioning will permit further investigation of the impact of demographic changes upon adult cognitive development in the pre-babyboom and babyboom cohorts. In this study approximately 1000 longitudinal subjects will be retested, and a new panel of 650 subjects will be initially assessed on a 5 hour psychometric test battery. This study will generate data suitable for the seven-year assessment of longitudinal changes in ability factor structure from young adulthood through advanced old age.