Levin Daniel T, Seiffert Adriane E, Cho Sun-Joo, Carter Kelly E
Department of Psychology and Human Development, Vanderbilt University, Peabody College #552, 230 Appleton Place, Nashville, TN, 37203-5721, USA.
Cogn Res Princ Implic. 2018 Dec 27;3(1):49. doi: 10.1186/s41235-018-0142-3.
Although phenomena such as change blindness and inattentional blindness are robust, it is not entirely clear how these failures of visual awareness are related to failures to attend to visual information, to represent it, and to ultimately learn in visual environments. On some views, failures of visual awareness such as change blindness underestimate the true extent of otherwise rich visual representations. This might occur if people did represent the changing features but failed to compare them across views. In contrast, other approaches emphasize visual representations that are created only when they are functional. On this view, change blindness may be associated with poor representations of the changing properties. It is possible to compromise and propose that representational richness varies across contexts, but then it becomes important to detail relationships among attention, awareness, and learning in specific, but applicable, settings. We therefore assessed these relationships in an important visual setting: screen-captured instructional videos. In two experiments, we tested the degree to which attention (as measured by gaze) predicts change detection, and whether change detection is associated with visual representations and content learning. We observed that attention sometimes predicted change detection, and that change detection was associated with representations of attended objects. However, there was no relationship between change detection and learning.
尽管诸如变化盲视和注意盲视等现象很普遍,但目前尚不完全清楚这些视觉意识的缺失是如何与未能关注视觉信息、对其进行表征以及最终在视觉环境中学习相关联的。在某些观点看来,诸如变化盲视之类的视觉意识缺失低估了原本丰富的视觉表征的真实程度。如果人们确实表征了变化的特征,但未能在不同视角间进行比较,就可能出现这种情况。相比之下,其他方法强调仅在具有功能性时才创建的视觉表征。按照这种观点,变化盲视可能与对变化属性的不良表征有关。有可能进行折衷并提出表征丰富性会因情境而异,但这样一来,详细说明在特定但适用的环境中注意力、意识和学习之间的关系就变得很重要。因此,我们在一个重要的视觉环境中评估了这些关系:屏幕捕捉的教学视频。在两项实验中,我们测试了注意力(通过注视来衡量)预测变化检测的程度,以及变化检测是否与视觉表征和内容学习相关联。我们观察到注意力有时能预测变化检测,并且变化检测与被关注对象的表征有关。然而,变化检测与学习之间没有关系。