Mirror symmetry and aging: The role of stimulus figurality and attention to colour.
Mirror symmetry and aging: The role of stimulus figurality and attention to colour.
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DOI：
10.3758/s13414-022-02565-5
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发表时间：
2023-01
期刊：
影响因子：
--
通讯作者：
Lemarchand RB
中科院分区：
文献类型：
--
作者：
Martinovic J;Huber J;Boyanova A;Gheorghiu E;Reuther J;Lemarchand RB
对称知觉研究通常使用两种刺激类型：图形和点图案。在这里，我们设计了一种新的图形刺激-楔形图案-由中央对齐的伪随机定位的楔形。为了研究图案的具象性和颜色对对称性感知的影响，我们比较了年轻人和老年人在多色楔形图案与非具象点图案中的对称性检测。对称性信号被隔离或不隔离的颜色，和对称性检测任务进行了两种条件下：有或没有基于颜色的注意。在第一个实验中，我们比较了颜色对称图案的性能，这些图案的楔形数（24 vs. 36）和颜色数（2 vs. 3）不同，发现当对称性和噪声信号按颜色分离时，注意颜色有助于对称性检测。在第二个实验中，我们比较了年轻和老年参与者的楔形和点状图案的表现。在隔离刺激的颜色的注意力的影响被放大的楔形相比，点图案，老年人和年轻的成年人表现出不同的效果，注意颜色的性能。与点图案相比，老年人在未提示的楔形图案上的表现明显较差，但他们的表现通过颜色提示大大提高，达到了与年轻参与者相似的表现水平。因此，在确认年龄相关的对称性检测下降的同时，我们发现，这种缺陷可以通过关注携带对称性信号的颜色来缓解。在线版本包含补充材料，可通过10.3758/s13414-022-02565-5获得。
Symmetry perception studies have generally used two stimulus types: figural and dot patterns. Here, we designed a novel figural stimulus—a wedge pattern—made of centrally aligned pseudorandomly positioned wedges. To study the effect of pattern figurality and colour on symmetry perception, we compared symmetry detection in multicoloured wedge patterns with nonfigural dot patterns in younger and older adults. Symmetry signal was either segregated or nonsegregated by colour, and the symmetry detection task was performed under two conditions: with or without colour-based attention. In the first experiment, we compared performance for colour-symmetric patterns that varied in the number of wedges (24 vs. 36) and number of colours (2 vs. 3) and found that symmetry detection was facilitated by attention to colour when symmetry and noise signals were segregated by colour. In the second experiment, we compared performance for wedge and dot patterns on a sample of younger and older participants. Effects of attention to colour in segregated stimuli were magnified for wedge compared with dot patterns, with older and younger adults showing different effects of attention to colour on performance. Older adults significantly underperformed on uncued wedge patterns compared with dot patterns, but their performance improved greatly through colour cueing, reaching performance levels similar to young participants. Thus, while confirming the age-related decline in symmetry detection, we found that this deficit could be alleviated in figural multicoloured patterns by attending to the colour that carries the symmetry signal. The online version contains supplementary material available at 10.3758/s13414-022-02565-5.
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影响因子：
1.8
作者：
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DOI：
10.1093/geronb/57.3.p241
发表时间：
2002-05-01
影响因子：
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作者：
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