Spatial memory during progressive disorientation
Spatial memory during progressive disorientation
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DOI：
10.1037/0278-7393.34.3.602
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发表时间：
2008-05-01
影响因子：
2.6
通讯作者：
Modarres, Reza
中科院分区：
文献类型：
--
作者：
Sargent, Jesse;Dopkins, Stephen;Modarres, Reza
在一个房间大小的环境中的物体位置的人类空间表征进行了探讨的证据表明，对象的位置编码不仅相对于观察者（自我中心），而且彼此（allocentrically）。参与者学习了4个物体的位置，然后被蒙上眼睛，要么（a）经历连续的70度和200度的全身旋转，要么（B）完全迷失方向，然后经历类似的70度和200度旋转序列。每次旋转后，参与者指向没有视觉的物体。指向错误的分析表明，作为参与者失去方向，代表对象的方向一般“漂移”离开他们的真实方向作为一个合奏，而不是在随机的，不相关的方向。这被解释为证据表明，对象对对象（allocentric）的关系在人类空间更新系统中发挥了很大的作用。然而，也有一些证据表明，代表物体的方向偶尔会偏离它们彼此独立的真实方向，这表明缺乏allocentric影响。自我中心和allocentric信息的相互作用的影响被认为是。
Human spatial representations of object locations in a room-sized environment were probed for evidence that the object locations were encoded relative not just to the observer (egocentrically) but also to each other (allocentrically). Participants learned the locations of 4 objects and then were blindfolded and either (a) underwent a succession of 70 degrees and 200 degrees whole-body rotations or (b) were fully disoriented and then underwent a similar sequence of 70 degrees and 200 degrees rotations. After each rotation, participants pointed to the objects without vision. Analyses of the pointing errors suggest that as participants lost orientation, represented object directions generally "drifted" off of their true directions as an ensemble, not in random, unrelated directions. This is interpreted as evidence that object-to-object (allocentric) relationships play a large part in the human spatial updating system. However, there was also some evidence that represented object directions occasionally drifted off of their true directions independently of one another, suggesting a lack of allocentric influence. Implications regarding the interplay of egocentric and allocentric information are considered.