SRC任务中大学生和老年人的反应抑制  

The Age-Related Difference of Response Inhibition in SRC Tasks

作　　者：王敬欣[1] 吴捷[1] 田静[1] 王荣[1] 

机构地区：[1]天津师范大学心理与行为研究院,天津300074

出　　处：《心理科学》2010年第2期349-352,345,共5页Journal of Psychological Science

基　　金：国家社会科学基金"十一五"规划国家青年基金课题(CBA060058);天津市教育科学"十一五"重点规划课题(ZGG191);天津市哲学社会科学研究项目(TJJX07-1017)

摘　　要：本研究选取有效大学生、老年人被试各20名,运用刺激-反应一致性任务(简称SRC)考察了反应抑制能力随认知老化的发展概况。结果发现:(1)内、外源性注意条件下老年人的反应时均显著长于大学生。(2)外源性注意条件下老年人一致性任务反应时与大学生没有显著差异,而不一致性任务反应时显著长于大学生;老年人的冲突效应量显著高于大学生。(3)目标离心率只影响外源性注意条件下不同年龄组的反应。以上结果说明在认知老化的过程中,除了加工速度降低等一般性因素外,来自于复杂的认知功能中抑制能力的衰退起着更为重要的作用。In the present study, 20 college students and 20 old adults participated in a stimulus-response compatibility task. The ability Of response inhibition was investigated with aging. The results showed that the aged adults responded more slowly, with the visual cue in an exogenous er endogenous attention condition. The aged adults had more conflict difficulty than did the younger adults in the incompatibility task, especially in the exogenous condition. Reaction time varied with target eccentricity in both conditions. All the findings suggest that increased interference in SRC tasks with age is not accounted for by simple cognitive slowing and more likely reflects other cognitive changes, such as decreased response inhibition.

关 键 词：反应抑制 速度加工 外源性注意 内源性注意 认知老化 

分 类 号：B842.1[哲学宗教—基础心理学]