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首页> 外文期刊>Physica, A. Statistical mechanics and its applications >Cortical dynamics and awareness state: an interpretation of observed interstimulus interval dependence in apparent motion
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Cortical dynamics and awareness state: an interpretation of observed interstimulus interval dependence in apparent motion

机译：皮质动力学和意识状态：视运动中观察到的间质间隔依赖性的解释

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In a recent paper on Cortical Dynamics, Francis and Grossberg raise the question how visual forms and motion information are integrated to generate a coherent percept of moving forms? In their investigation of illusory contours (which are, like Kanizsa squares, mental constructs rather than stimuli on the retina) they quantify the subjective impression of apparent motion between illusory contours that are formed by two subsequent stimuli with delay times of about 0.2 s (called the interstimulus interval ISI). The impression of apparent motion is due to a back referral of a later experience to an earlier time in the conscious representation. A model is developed which describes the state of awareness in the observer in terms of a time dependent Schroedinger equation to which a second order time derivative is added. This addition requires as boundary conditions the values of the solution both at the beginning and after the process. Satisfactory quantitative agreement is found between the results of the model and the experimental results. We recall that in the von Neumann interpretation of the collapse of the quantum mechanical wave-function, the collapse was associated with an observer's awareness. Some questions of causality and determinism that arise from later-time boundary conditions are touched upon. (C) 1998 Published by Elsevier Science B.V. All rights reserved. [References: 11]
机译：在最近关于皮质动力学的论文中，弗朗西斯（Francis）和格罗斯伯格（Grossberg）提出了一个问题，即视觉形式和运动信息如何整合以产生运动形式的连贯感知？在他们对虚幻轮廓线的研究中（像卡尼萨广场一样，是心理构造，而不是视网膜上的刺激），他们量化了由两个后续延迟时间约为0.2 s的刺激所形成的虚幻轮廓线之间的视在运动的主观印象（称为刺激间隔ISI）。明显运动的印象归因于在有意识的表征中将较晚的经历回溯到较早的时间。开发了一种模型，该模型根据时间相关的Schroedinger方程描述了观察者中的感知状态，并在该方程中添加了二阶时间导数。这种加法要求在处理的开始和之后都以解决方案的值为边界条件。在模型的结果和实验结果之间发现令人满意的定量一致性。我们记得，在冯·诺依曼（von Neumann）对量子力学波函数崩溃的解释中，崩溃与观察者的意识有关。涉及到一些因后期边界条件引起的因果关系和确定性问题。 （C）1998，Elsevier Science B.V.保留所有权利。 [参考：11]

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