A balancing act: physical balance, through arousal, influences size perception.
A balancing act: physical balance, through arousal, influences size perception.
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DOI：
10.3758/app.72.7.1890
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发表时间：
2010-10
期刊：
影响因子：
--
通讯作者：
Stevens NR
中科院分区：
文献类型：
--
作者：
Geuss MN;Stefanucci JK;de Benedictis-Kessner J;Stevens NR
先前的研究表明，操纵视觉会影响平衡。在这里，我们质疑操纵平衡是否会影响视觉，以及它如何影响视觉，特别是对宽度的感知。在实验1中，参与者估计梁的宽度，而平衡和不平衡。当不平衡时，参与者判断宽度较小。一个可能的解释是，不平衡的参与者没有像平衡时那样长时间地观察刺激，因为他们专注于保持平衡。在实验2中，我们通过限制观看时间来测试这一概念。实验2重复了实验1的发现，但观看时间对宽度判断没有影响。在实验3中，参与者的唤醒水平被操纵，因为平衡任务可能会产生唤醒。在慢跑时，参与者判断光束较小。在实验4中，参与者完成了另一项不涉及运动的唤醒任务（向后数7秒）。再次，参与者判断梁被唤醒时较小。实验5a在估计板宽之前提高了参与者的唤醒水平（以控制潜在的双任务效应），发现提高的唤醒仍然影响板宽的感知。总的来说，由多种操作（包括平衡）引起的唤醒水平提高会影响感知宽度。
Previous research demonstrates that manipulating vision influences balance. Here, we question whether manipulating balance can influence vision and how it may influence vision, specifically the perception of width. In Experiment 1, participants estimated the width of beams while balanced and unbalanced. When unbalanced, participants judged the widths to be smaller. One possible explanation is that unbalanced participants did not view the stimulus as long as when balanced because they were focused on remaining balanced. In Experiment 2, we tested this notion by limiting viewing time. Experiment 2 replicated the findings of Experiment 1 but viewing time had no effect on width judgments. In Experiment 3, participants’ level of arousal was manipulated because the balancing task likely produced arousal. While jogging, participants judged the beams to be smaller. In Experiment 4, participants completed another arousing task (counting backward by 7s) that did not involve movement. Again, participants judged the beams to be smaller when aroused. Experiment 5a raised participants’ level of arousal before estimating the board widths (to control for potential dual-task effects) and found that heightened arousal still influenced perceived width of the boards. Collectively, heightened levels of arousal, caused by multiple manipulations (including balance), influenced perceived width.