The relationship between object files and conscious perception
The relationship between object files and conscious perception
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DOI：
10.1016/j.cognition.2004.03.008
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发表时间：
2005-05-01
期刊：
影响因子：
3.4
通讯作者：
Wynn, K
中科院分区：
文献类型：
--
作者：
Mitroff, SR;Scholl, BJ;Wynn, K
对象文件（OFs）是假设的中级表示，它调解了我们对持久对象的有意识感知，例如告诉我们“哪个去了哪里”。尽管OF框架很有吸引力，但以前的研究并没有直接探讨OF是否确实对应于有意识的感知。在这里，我们提出了至少一种情况下，有意识的知觉“去了哪里”在动态模糊的显示偏离类似的对应计算的OF系统。观察者观看了一个“弹跳/流”显示，其中两个相同的物体移动，使得它们可以相互弹跳或流过去。我们测量了两个因变量：（1）感知到的弹跳或流的明确报告;以及（2）隐含的“对象特定预览益处”（OSPB），其中特定对象上的信息的“预览”在稍后的时间点上加速了该信息的识别，当它再次出现在同一对象上时（与它再次出现在不同对象上时相比），超出了显示范围的启动。当显示器被操纵，使观察者有一个强烈的偏见，感知流（超过95%的试验），但仍有一个强大的OSPB在相反的方向，这样的对象文件似乎有'反弹'，即使接收'流'。考虑到OSPBs已被视为目标文件操作的标志，这里报告的五个实验表明，至少在一些专门的（也许是生态无效的）情况下，有意识的感知“去了哪里”在动态模糊的显示可以偏离对象文件系统计算的映射。(c)2004 Elsevier B. V.保留所有权利。
Object files (OFs) are hypothesized mid-level representations which mediate our conscious perception of persisting objects-e.g. telling us `which went where'. Despite the appeal of the OF framework, not previous research has directly explored whether OFs do indeed correspond to conscious percepts. Here we present at least one case wherein conscious percepts of `which went where' in dynamic ambiguous displays diverge from the analogous correspondence computed by the OF system. Observers viewed a `bouncing/streaming' display in which two identical objects moved such that they could have either bounced off or streamed past each other. We measured two dependent variables: (1) an explicit report of perceived bouncing or streaming; and (2) an implicit `object-specific preview benefit' (OSPB), wherein a `preview' of information on a specific object speeds the recognition of that information at a later point when it appears again on the same object (compared to when it reappears on a different object), beyond display-wide priming. When the displays were manipulated such that observers had a strong bias to perceive streaming (on over 95% of the trials), there was nevertheless a strong OSPB in the opposite direction-such that the object files appeared to have `bounced' even though the percept `streamed'. Given that OSPBs have been taken as a hallmark of the operation of object files, the five experiments reported here suggest that in at least some specialized (and perhaps ecologically invalid) cases, conscious percepts of `which went where' in dynamic ambiguous displays can diverge from the mapping computed by the object-file system. (c) 2004 Elsevier B.V. All rights reserved.