Hayden Angela, Bhatt Ramesh S, Quinn Paul C
University of Kentucky, Lexington, Kentucky 40506-0044, USA.
Atten Percept Psychophys. 2009 Jan;71(1):52-63. doi: 10.3758/APP.71.1.52.
Although several studies have examined infants' sensitivity to perceptual organizational cues, few have examined the functional relations among these cues. We examined how uniform connectedness (UC) functions in relation to shape and luminance similarity. UC has been characterized as the entry-level mechanism of perceptual organization and would therefore be predicted to be more salient than the other two cues. We found that UC was more salient than shape similarity organization was, to the point that 6- to 7-month-old infants failed to even organize on the basis of shape in the presence of UC. Luminance similarity, however, was more salient than UC, even though UC was detected by infants in the presence of luminance cues. We conclude that UC is not necessarily the most salient mechanism of perceptual organization in infancy. Moreover, the luminance-UC-shape salience hierarchy exhibited by 6- to 7-month-olds in the present study is consistent with the order of development of sensitivity to these organizational cues.
尽管有几项研究考察了婴儿对知觉组织线索的敏感性，但很少有研究考察这些线索之间的功能关系。我们研究了统一连通性（UC）与形状和亮度相似性之间的功能关系。UC被认为是知觉组织的入门级机制，因此预计比其他两个线索更显著。我们发现，UC比形状相似性组织更显著，以至于6到7个月大的婴儿在存在UC的情况下甚至无法基于形状进行组织。然而，亮度相似性比UC更显著，尽管婴儿在存在亮度线索的情况下能检测到UC。我们得出结论，UC不一定是婴儿期知觉组织最显著的机制。此外，本研究中6到7个月大婴儿表现出的亮度 - UC - 形状显著性层次结构与对这些组织线索的敏感性发展顺序一致。
