Roelfsema Pieter R
Department of Vision & Cognition, Netherlands Institute for Neuroscience (KNAW), 1105 BA Amsterdam, the Netherlands; Department of Integrative Neurophysiology, VU University, De Boelelaan 1085, 1081 HV Amsterdam, the Netherlands; Department of Psychiatry, Academic Medical Centre, Postbus 22660, 1100 DD Amsterdam, the Netherlands; Laboratory of Visual Brain Therapy, Sorbonne Université, INSERM, CNRS, Institut de la Vision, 17 rue Moreau, 75012 Paris, France.
Neuron. 2023 Apr 5;111(7):1003-1019. doi: 10.1016/j.neuron.2023.03.016.
When we look at an image, its features are represented in our visual system in a highly distributed manner, calling for a mechanism that binds them into coherent object representations. There have been different proposals for the neuronal mechanisms that can mediate binding. One hypothesis is that binding is achieved by oscillations that synchronize neurons representing features of the same perceptual object. This view allows separate communication channels between different brain areas. Another hypothesis is that binding of features that are represented in different brain regions occurs when the neurons in these areas that respond to the same object simultaneously enhance their firing rate, which would correspond to directing object-based attention to these features. This review summarizes evidence in favor of and against these two hypotheses, examining the neuronal correlates of binding and assessing the time course of perceptual grouping. I conclude that enhanced neuronal firing rates bind features into coherent object representations, whereas oscillations and synchrony are unrelated to binding.
当我们观察一幅图像时，其特征在我们的视觉系统中以高度分布式的方式呈现，这就需要一种机制将它们绑定成连贯的物体表征。对于能够介导绑定的神经元机制，已经有了不同的提议。一种假设是，绑定是通过使代表同一感知对象特征的神经元同步的振荡来实现的。这种观点允许不同脑区之间存在独立的通信通道。另一种假设是，当不同脑区中对同一物体做出反应的神经元同时提高其放电率时，就会发生在这些区域中所呈现的特征的绑定，这将对应于将基于物体的注意力引向这些特征。这篇综述总结了支持和反对这两种假设的证据，研究了绑定的神经元相关性，并评估了感知分组的时间进程。我的结论是，增强的神经元放电率将特征绑定成连贯的物体表征，而振荡和同步与绑定无关。
