Intraub Helene, Hoffman James E, Wetherhold C Jeffrey, Stoehs Stacy-Ann
Department of Psychology, University of Delaware, Newark, DE 19716, USA.
Percept Psychophys. 2006 Jul;68(5):759-69. doi: 10.3758/bf03193699.
Scene memory frequently includes a swath of unseen layout beyond a photograph's boundaries (boundary extension [BE]; Intraub and Richardson, 1989). Might it be affected by the viewer's plan to shift fixation near a view boundary? When photographs were centrally fixated (500 msec), BE occurred following a 2-sec masked interval (Experiment 1). In Experiments 2-4, a cue during the first fixation signaled viewers to fixate an object near the left or right boundary. The picture was masked before the eyes landed. BE occurred on the cued side and on the top and bottom, but not on the uncued side. This relatively accurate performance on the uncued side suggests that inhibition of a movement to one side (in a competitive task) may also inhibit extrapolation of layout. BE on the to-be-fixated side, however, supports the idea that anticipatory representation of layout is an adaptive error that may aid the spatial integration of successive views.
场景记忆常常包括照片边界之外一片未看到的布局（边界扩展[BE]；因特拉乌布和理查森，1989年）。它会受到观看者在视图边界附近转移注视点计划的影响吗？当照片被中央注视（500毫秒）时，在2秒的掩蔽间隔后出现了边界扩展（实验1）。在实验2 - 4中，首次注视期间的一个提示信号告知观看者注视左侧或右侧边界附近的一个物体。在眼睛落点之前图片被掩蔽。边界扩展出现在提示侧以及顶部和底部，但未提示侧没有。未提示侧这种相对准确的表现表明，在竞争任务中对向一侧移动的抑制可能也会抑制布局的外推。然而，在即将注视侧的边界扩展支持了这样一种观点，即布局的预期表征是一种适应性错误，可能有助于连续视图的空间整合。
