Kim S, Frank T D
Center for the Ecological Study of Perception and Action, University of Connecticut, Storrs, CT, USA.
Center for the Ecological Study of Perception and Action, 7712 University of Connecticut , Storrs, CT, USA; Department of Physics, University of Connecticut, Storrs, CT, USA.
Perception. 2018 Jan;47(1):44-66. doi: 10.1177/0301006617731047. Epub 2017 Sep 24.
We report from two variants of a figure-ground experiment that is known in the literature to involve a bistable perceptual domain. The first variant was conducted as a two-alternative forced-choice experiment and in doing so tested participants on a categorical measurement scale. The second variant involved a Likert scale measure that was considered to represent a continuous measurement scale. The two variants were conducted as a single within-subjects experiment. Measures of bistability operationalized in terms of hysteresis size scores showed significant positive correlations across the two response conditions. The experimental findings are consistent with a dualistic interpretation of self-organizing perceptual systems when they are described on a macrolevel by means of so-called amplitude equations. This is explicitly demonstrated for a Lotka-Volterra-Haken amplitude equation model of task-related brain activity. As a by-product, the proposed dynamical systems perspective also sheds new light on the anchoring problem of producing numerical, continuous judgments.
我们报告了一项文献中已知涉及双稳态感知领域的图形-背景实验的两个变体。第一个变体作为二选一的强制选择实验进行，在此过程中以分类测量量表对参与者进行测试。第二个变体涉及一个李克特量表测量，该量表被认为代表连续测量量表。这两个变体作为一个单一的被试内实验进行。根据滞后大小分数操作化的双稳态度量在两种反应条件下显示出显著的正相关。当通过所谓的振幅方程在宏观层面描述自组织感知系统时，实验结果与二元论解释一致。这在与任务相关的大脑活动的洛特卡-沃尔泰拉-哈肯振幅方程模型中得到了明确证明。作为一个副产品，所提出的动态系统观点也为做出数值、连续判断的锚定问题提供了新的视角。
