Paquet L, Merikle P M
University of Waterloo, Ontario, Canada.
J Exp Psychol Hum Percept Perform. 1988 Feb;14(1):89-100. doi: 10.1037//0096-1523.14.1.89.
In four experiments we evaluated whether there is a priority in early perceptual analysis for the global aspect of a nonattended, visual, compound stimulus. In all experiments, two objects were distinguished by being enclosed in either a square or a circle, and each object consisted of a larger letter constructed from smaller letters. Attention was directed to one of the two objects on the basis of either the square/circle distinction (Experiments 1, 2, and 3) or a visual precue (Experiment 4). In agreement with previous findings, for attended objects, the global aspect was identified faster and was more difficult to ignore than the local aspect. However, for nonattended objects, no evidence was found for an overall priority in perceptual processing leading to identification of the global aspect. Rather, the results indicate that there is a priority in perceptual processing for the general category of the global information contained within nonattended objects. Although the results provide some support for the view that global information receives priority during early perceptual analysis, aspects of the results are more consistent with postidentification accounts of global precedence.
在四项实验中，我们评估了对于一个未被关注的视觉复合刺激的整体特征，早期知觉分析中是否存在优先性。在所有实验中，两个物体通过被包含在正方形或圆形中来区分，并且每个物体都由由较小字母构成的较大字母组成。基于正方形/圆形的区分（实验1、2和3）或视觉预提示（实验4），注意力被引导至两个物体中的一个。与先前的研究结果一致，对于被关注的物体，整体特征比局部特征被更快识别且更难被忽略。然而，对于未被关注的物体，没有证据表明在导致整体特征识别的知觉加工中存在整体上的优先性。相反，结果表明在未被关注物体中所包含的整体信息的一般类别在知觉加工中存在优先性。虽然结果为整体信息在早期知觉分析中获得优先性这一观点提供了一些支持，但结果的某些方面更符合整体优先性的识别后解释。
