Kravitz Dwight J, Vinson Latrice D, Baker Chris I
Laboratory of Brain and Cognition, National Institute of Mental Health, National Institutes of Health, Bethesda, MD 20892, USA.
Trends Cogn Sci. 2008 Mar;12(3):114-22. doi: 10.1016/j.tics.2007.12.006. Epub 2008 Feb 11.
Visual object recognition is often assumed to be insensitive to changes in retinal position, leading to theories and formal models incorporating position-independent object representations. However, recent behavioral and physiological evidence has questioned the extent to which object recognition is position independent. Here, we take a computational and physiological perspective to review the current behavioral literature. Although numerous studies report reduced object recognition performance with translation, even for distances as small as 0.5 degrees of visual angle, confounds in many of these studies make the results difficult to interpret. We conclude that there is little evidence to support position-independent object recognition and the precise role of position in object recognition remains unknown.
视觉物体识别通常被认为对视网膜位置的变化不敏感，这导致了包含位置独立物体表征的理论和形式模型的出现。然而，最近的行为和生理证据对物体识别在多大程度上与位置无关提出了质疑。在这里，我们从计算和生理的角度来回顾当前的行为学文献。尽管许多研究报告称，即使对于小至0.5度视角的平移，物体识别性能也会下降，但这些研究中的许多混淆因素使得结果难以解释。我们得出结论，几乎没有证据支持位置独立的物体识别，位置在物体识别中的精确作用仍然未知。
