Characterising switching behaviour in perceptual multi-stability
Characterising switching behaviour in perceptual multi-stability
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DOI：
10.1016/j.jneumeth.2012.04.004
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发表时间：
2012-09-15
影响因子：
3
通讯作者：
Winkler, Istvan
中科院分区：
文献类型：
--
作者：
Denham, Susan;Bendixen, Alexandra;Winkler, Istvan
当人们长时间体验一种不变的感觉输入时，他们的知觉往往会随机地、不可避免地在对感觉的不同解释之间切换；这种现象被称为知觉双稳定或多稳定。在这些范例中获得的实验数据的巨大变异性使得很难区分典型的行为模式，也很难识别转换模式之间的差异。在这里，我们提出了一种新的方法来表征开关行为，基于从数据中提取转移矩阵，这提供了一个在数学上很好理解的紧凑表示。在这个表示的基础上，我们可以描述感知转换的模式，可视化和模拟典型的转换模式，并计算观察到特定转换模式的可能性。该方法可以支持不同观察者、不同实验条件甚至不同实验之间的比较。我们使用我们的实验中的例子来演示这种方法提供的见解，这些实验研究了听觉流传输中的多稳定性。然而，这种方法是通用的，因此广泛适用于任何领域的多重稳定性研究。(C)2012爱思唯尔B.V.保留所有权利。
When people experience an unchanging sensory input for a long period of time, their perception tends to switch stochastically and unavoidably between alternative interpretations of the sensation; a phenomenon known as perceptual bi-stability or multi-stability. The huge variability in the experimental data obtained in such paradigms makes it difficult to distinguish typical patterns of behaviour, or to identify differences between switching patterns. Here we propose a new approach to characterising switching behaviour based upon the extraction of transition matrices from the data, which provide a compact representation that is well-understood mathematically. On the basis of this representation we can characterise patterns of perceptual switching, visualise and simulate typical switching patterns, and calculate the likelihood of observing a particular switching pattern. The proposed method can support comparisons between different observers, experimental conditions and even experiments. We demonstrate the insights offered by this approach using examples from our experiments investigating multi-stability in auditory streaming. However, the methodology is generic and thus widely applicable in studies of multi-stability in any domain. (C) 2012 Elsevier B.V. All rights reserved.