Bertin E, Bhatt R S
Psychology Department, University of Kentucky, Lexington, 40506-0044, USA.
J Exp Child Psychol. 2001 Mar;78(3):291-311. doi: 10.1006/jecp.2000.2568.
Many models of object perception posit that adults encode individual features in visual scenes before processing the conjunction relations among these features to generate holistic representations. Prior research suggests that infants detect textural discrepancies based on individual features more readily than those based on feature conjunctions. While these results suggest adult-like qualitative differences in infants' processing of features versus conjunctions, there are potential alternative explanations. We examined three such explanations: (1) failure to process one of the features that constitute the conjunction, (2) failure to encode and remember conjunction information that is necessary to detect conjunction-based textural discrepancies, and (3) the fact that conjunction-based discrepancies involve stimuli that are more similar to original stimuli than those involving feature-based discrepancies. None of these factors could explain 5.5-month-olds' superior processing of featural than conjunction-based textural discrepancies. Thus, in infancy, as in adulthood, features and conjunction relations appear to be processed by qualitatively different mechanisms.
许多物体感知模型认为，成年人在处理视觉场景中各个特征之间的联合关系以生成整体表征之前，会先对这些特征进行编码。先前的研究表明，婴儿基于单个特征检测纹理差异比基于特征联合更容易。虽然这些结果表明婴儿在处理特征与联合方面存在类似成人的质的差异，但也有其他潜在的解释。我们研究了三种这样的解释：（1）未能处理构成联合的其中一个特征；（2）未能编码和记住检测基于联合的纹理差异所需的联合信息；（3）基于联合的差异所涉及的刺激比基于特征的差异所涉及的刺激与原始刺激更相似这一事实。这些因素都无法解释5.5个月大婴儿对基于特征的纹理差异的处理优于基于联合的纹理差异。因此，在婴儿期，如同在成年期一样，特征和联合关系似乎是通过质的不同机制来处理的。
