Preserved Representation of Changed Objects

这个项目研究人们在观察世界时所构建的物体和场景的视觉表现。 虽然有意识的经验表明，我们形成了一个详细的表示我们正在看什么，最近的发现，观察者往往无法检测到大的变化，从一个视图到下一个（变化盲视）的场景已被解释为证据，我们不代表我们的视觉环境在很多细节。 这个项目检验了一个替代假设：虽然观察者不能有意识地检测到复杂场景的视觉细节的变化，但这些细节仍然被表现出来。 实验测试这一假设的性质时，变化检测失败的视觉表征。 研究中采用了两种程序创新。 首先，刺激将是动态图片，而不是静态场景，以允许在更接近观察者的真实世界经验的背景下评估场景表示。 第二，在变化检测期间将监测眼球运动。 眼动应该提供一个更敏感的测量场景表征，并允许在形成场景表征的注意的作用进行检查。 这些方法将被用来调查变化检测的失败是否意味着缺乏一个表示或仅仅是一个表示意识的不可访问性。 这些结果应该有助于我们理解视觉环境是如何从一个视图到下一个视图进行表示的，以及这些表示如何有助于我们对稳定视觉世界的感知和意识。

This project investigates the visual representations of objects and scenes people construct as they view the world. Although conscious experience suggests that we form a detailed representation of what we are looking at, recent findings that observers often fail to detect large changes to scenes from one view to the next (change blindness) have been interpreted as evidence we don't represent our visual surroundings in much detail. This project examines an alternative hypothesis: Although observers cannot consciously detect changes to the visual details of complex scenes, these details are nevertheless represented. The experiments test this hypothesis by examining the nature of visual representations when change detection fails. Two procedural innovations are used in the studies. First, stimuli will be motion pictures rather than static scenes, to allow assessment of scene representation in a context closer to the real-world experiences of observers. Second, eye movements will be monitored during change detection. Eye movements should provide a more sensitive measure of scene representation, and will allow the role of attention in formation of scene representations to be examined. These methods will be used to investigate whether failures of change detection imply the lack of a representation or simply the inaccessibility of a representation to awareness. The results should add to our understanding of how the visual environment is represented from one view to the next, and how the representations contribute to our perception and awareness of a stable visual world.