冗余视觉维度处理中的年龄相关差异。
Age-related differences in the processing of redundant visual dimensions.
作者信息
Bucur Barbara, Madden David J, Allen Philip A
机构信息
Center for the Study of Aging and Human Development, Duke University Medical Center, Durham, NC 27710, USA.
出版信息
Psychol Aging. 2005 Sep;20(3):435-46. doi: 10.1037/0882-7974.20.3.435.
Abstract
Age differences in the redundant-signals effect and coactivation of visual dimensions were investigated in 2 experiments. In Experiment 1 the task required the conjoining of dimensions, whereas in Experiment 2 the spatial separation of dimensions was manipulated. Although coactivation was evident for both age groups when the redundant dimensions occurred at the same location, older adults showed more evidence for coactivation, perhaps because of compensation for declines in perceptual processing. When the redundant dimensions were separated, neither age group showed evidence for coactivation. These findings indicate that the coactive processing of redundant visual dimensions is spared in healthy older adults and that for both groups, attention must be focused on both dimensions for coactivation to occur.
摘要
在两项实验中研究了冗余信号效应和视觉维度共同激活中的年龄差异。在实验1中，任务要求将维度结合起来，而在实验2中，对维度的空间分离进行了操控。当冗余维度出现在同一位置时，两个年龄组都明显存在共同激活现象，但老年人表现出更多共同激活的证据，这可能是对感知加工能力下降的一种补偿。当冗余维度分离时，两个年龄组均未表现出共同激活的证据。这些发现表明，健康老年人中冗余视觉维度的共同激活加工得以保留，并且对于两组而言，共同激活的发生都必须将注意力集中在两个维度上。
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