与表象引力有关的各向异性。

IF 1.7 4区 心理学 Q3 PSYCHOLOGY
Timothy L Hubbard, Susan E Ruppel
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引用次数: 0

摘要

四项实验研究了表象重力(即对先前观看过的目标位置的记忆向隐含重力吸引的方向移动)是否会均匀地发生在整个目标上。参与者观看的是静止的、垂直移动的或水平移动的目标,这些目标在图像平面内的大小和高度各不相同。目标消失后,受试者指出该目标上边缘或下边缘的记忆位置。结果发现了明显的各向异性,因为顶边的记忆位置向下偏移,而底边的记忆位置没有偏移或向上偏移。纵轴的各向异性不受参与者是否在目标呈现之前就知道要记住哪条边缘的影响,也不受目标是静止还是垂直移动的影响,不过当目标水平移动时,纵轴的各向异性有降低的趋势。当目标静止时,较大的目标和图片平面上较高的目标会导致较大的位移,但当目标移动时,大小和高度的影响会减弱。如果将目标的上边缘和下边缘分别视为运动目标的后边缘和前边缘,那么与表象重力相关的各向异性与之前报告的水平运动目标的表象动量各向异性类似(因为隐含的重力吸引方向是向下的)。这种各向异性的存在对空间表征以及环境中刺激物的定位和互动都有影响。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Anisotropies related to representational gravity.

Four experiments examined whether representational gravity, in which memory for the location of a previously-viewed target is displaced in the direction of implied gravitational attraction, occurs uniformly across a target. Participants viewed stationary, vertically-moving, or horizontally-moving targets of different sizes and at different heights within the picture plane. After a target vanished, participants indicated the remembered location of the top edge or bottom edge of that target. Significant anisotropies were found, as the remembered location of the top edge was displaced downward, whereas the remembered location of the bottom edge was not displaced or was displaced upward. Anisotropies along the vertical axis were not influenced by whether participants knew prior to target presentation which edge to remember or by whether targets were stationary or moved vertically, although there was a trend for anisotropies along the vertical axis to be reduced when targets moved horizontally. Larger targets and targets higher in the picture plane resulted in larger displacement when targets were stationary, although effects of size and height were diminished when targets were moving. If the top edge and bottom edge of a target are considered analogous to the trailing edge and leading edge of a moving target, respectively, then anisotropies related to representational gravity are similar to anisotropies previously reported for representational momentum for horizontally-moving targets (as direction of implied gravitational attraction is downward). The existence of such anisotropies has implications for the representation of space and for the localization of and interaction with stimuli in the environment.

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来源期刊
CiteScore
3.60
自引率
17.60%
发文量
197
审稿时长
4-8 weeks
期刊介绍: The journal Attention, Perception, & Psychophysics is an official journal of the Psychonomic Society. It spans all areas of research in sensory processes, perception, attention, and psychophysics. Most articles published are reports of experimental work; the journal also presents theoretical, integrative, and evaluative reviews. Commentary on issues of importance to researchers appears in a special section of the journal. Founded in 1966 as Perception & Psychophysics, the journal assumed its present name in 2009.
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