Multistability in auditory stream segregation: a predictive coding view
Multistability in auditory stream segregation: a predictive coding view
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听觉流分离的多稳定性：预测编码视图
DOI：
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发表时间：
2012
期刊：
影响因子：
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通讯作者：
A. Bendixen
中科院分区：
文献类型：
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作者：
I. Winkler;S. Denham;R. Mill;Tamás Bohm;A. Bendixen
听觉流分离涉及将时间上分离的声学事件链接成一个或多个连贯序列。对于任何不平凡的声音序列，都可以形成许多替代描述，但任何时候只有其中一种或极少数出现在意识中。研究显示听觉流中的双/多稳定性表明，一些（也许是许多）替代描述在大脑中并行呈现，并且它们不断争夺有意识的感知。在这里，基于预测编码视图，我们考虑这些声音表示的性质以及它们如何相互竞争。预测处理通过发出先前建立的模式的延续以及新声源的出现的信号来帮助保持感知稳定性。它还提供了每个竞争表示对当前声学场景的描述程度的衡量标准。这种听觉流分离的解释已经在听觉流范例中获得的感知数据上进行了测试。
Auditory stream segregation involves linking temporally separate acoustic events into one or more coherent sequences. For any non-trivial sequence of sounds, many alternative descriptions can be formed, only one or very few of which emerge in awareness at any time. Evidence from studies showing bi-/multistability in auditory streaming suggest that some, perhaps many of the alternative descriptions are represented in the brain in parallel and that they continuously vie for conscious perception. Here, based on a predictive coding view, we consider the nature of these sound representations and how they compete with each other. Predictive processing helps to maintain perceptual stability by signalling the continuation of previously established patterns as well as the emergence of new sound sources. It also provides a measure of how well each of the competing representations describes the current acoustic scene. This account of auditory stream segregation has been tested on perceptual data obtained in the auditory streaming paradigm.