Department of Psychology, University of Canterbury, Christchurch, New Zealand.
PLoS One. 2013 May 16;8(5):e63264. doi: 10.1371/journal.pone.0063264. Print 2013.
Previous research has shown that attention to an object can trigger the retrieval of features of a preceding object. The present study investigates whether such retrieval would occur to a recently inhibited object. In three experiments, participants saw two successively presented stimuli (S1 and S2) that varied in color and orientation. The task was to respond to the color or orientation of S2 in accordance with a task cue at the beginning of each trial. In separate experiments, we manipulated the number of the trials on which the task relevant features of S1 and S2 were matched versus mismatched, and the perceived object continuation between the two stimuli. Evidence for spontaneous feature retrieval was found when S1 and S2 could be seen as different instantiations of the same object but not when they were likely to be perceived as different types of objects. These results suggest that the features of a previously inhibited object can be retrieved spontaneously. However, such retrieval and its effect on a subsequent stimulus depend on the perceived object continuity between the two successive stimuli.
先前的研究表明，对一个物体的注意力会触发对先前物体特征的检索。本研究调查了这种检索是否会发生在最近被抑制的物体上。在三个实验中，参与者看到了两个连续呈现的刺激（S1 和 S2），它们在颜色和方向上有所不同。任务是根据每个试验开始时的任务提示来响应 S2 的颜色或方向。在单独的实验中，我们操纵了 S1 和 S2 的任务相关特征在匹配与不匹配的试验次数，以及两个刺激之间的感知物体连续性。当 S1 和 S2 可以被视为同一物体的不同实例，但不能被视为不同类型的物体时，就会发现自发特征检索的证据。这些结果表明，先前被抑制的物体的特征可以自发地被检索到。然而，这种检索及其对后续刺激的影响取决于两个连续刺激之间的感知物体连续性。
