老年人在线索化空间Stroop任务下的抑制能力
首发时间:2012-03-02
摘要:抑制衰退可能是导致老年人的认知老化的主要原因。研究采用外源线索化空间Stroop任务考察老年人和大学生的返回抑制和抑制优势反应能力的差异。结果显示:老年人在一致试次和不一致试次的平均反应时均显著长于大学生;老年人的总Stroop效应量显著大于大学生;大学生出现明显的返回抑制,老年人的有效线索试次下平均反应时和无效线索试次下无显著差异;老年人和大学生分别在三种线索条件下的Stroop效应量无显著差异。以上说明,老年人的认知老化不仅是加工速度的降低,抑制能力的衰退也起着重要作用,并且注意能调节老年人的认知反应。
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Aged-Related Diference of Inhibition in spatial Stroop Task with Peripheral Cuing
Abstract:Inhibition decline may be the important factor of cognition aging. This paper joined cue-target paradigm with spatial Stroop task to investigate the difference of IOR and inhibitory of dominant response between university students and older adults. The result showed that older adults responded more slowlv in either congruence trials or incongruence trials, and they had larger size of Stroop effect. IOR occured in the university students but not older adults. And old adults responded a little slowly in the invaild cue trials compared to do in the vaild cue trials. Meanwhile, old adults and university students had no difference in three levels of cue. All these findings suggest that increased interference in this task with age is not only accounted for by simple cogntive slowing, but also decreased IOR and inhibitory of dominant response, and attention can affect the respond of old adults.
Keywords: aging spatial attention IOR response inhibition
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