Tummeltshammer Kristen, Amso Dima
Brown University, Providence, Rhode Island, USA.
Department of Psychology, Columbia University, New York, New York, USA.
Infancy. 2023 May;28(3):634-649. doi: 10.1111/infa.12530. Epub 2023 Feb 1.
Infants encounter new objects and learn about object features in relation to a rich and detailed visuospatial context. Using a contextual cueing task, recent work showed that 6- and 10-month-old infants search more efficiently for target objects in repeated rather than novel visuospatial contexts (i.e., arrays of shapes on a blank background). Here, we investigate whether infants' sensitivity to visuospatial context scales up to more complex and potentially more distracting, naturalistic scenes. In an eye-tracking task, 8-month-olds searched for a novel target object in colorful photographs of everyday environments (e.g., bedrooms and kitchens). Repeated ("Old") contexts co-varied with target locations, such that the target object appeared in exactly the same location on the same scene, while varying ("New") contexts contained target objects placed in different counterbalanced locations across a variety of scenes. Infants exhibited faster search times, more anticipation of target animation, and longer looking at targets that appeared in Old relative to New contexts. In a subsequent memory test, infants showed better recognition of label-object pairings for target objects that had appeared in Old, rather than New, contexts. These results indicate that infants can use visuospatial contextual information in complex naturalistic scenes to facilitate memory-guided attention and learning of object-paired labels.
婴儿会接触到新物体,并在丰富而详细的视觉空间背景下了解物体特征。利用一种情境线索任务,最近的研究表明,6个月和10个月大的婴儿在重复的而非新颖的视觉空间背景(即空白背景上的形状阵列)中能更有效地搜索目标物体。在此,我们研究婴儿对视觉空间背景的敏感度是否能扩展到更复杂且可能更具干扰性的自然场景。在一项眼动追踪任务中,8个月大的婴儿在日常环境(如卧室和厨房)的彩色照片中搜索一个新的目标物体。重复的(“旧的”)情境与目标位置共同变化,使得目标物体在同一场景的完全相同位置出现,而变化的(“新 的”)情境包含在各种场景中放置在不同平衡位置的目标物体。相对于新情境,婴儿在旧情境中出现目标时表现出更快的搜索时间、对目标动画更多的预期以及更长的注视时间。在随后的记忆测试中,婴儿对出现在旧情境而非新情境中的目标物体的标签 - 物体配对表现出更好的识别。这些结果表明,婴儿可以在复杂的自然场景中利用视觉空间情境信息来促进记忆引导的注意力以及物体配对标签的学习。