Visual Remapping.

Visual Remapping.
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DOI:
10.1146/annurev-vision-032321-100012
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发表时间:
2021-09-15
影响因子:
6
通讯作者:
--
中科院分区:
医学2区
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--
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我们的视觉系统从根本上来说是视网膜专题。当观看稳定的场景时,每次眼球运动都会改变物体的特征和视网膜上的位置。因此,必须在扫视之间更新或重新映射感觉表征,以对齐扫视前和扫视后的输入。最早的重映射研究集中于神经元空间感受野的预期、眼跳前的变化。随着时间的推移,人们越来越清楚,重新映射可以有多种形式,并且可能由多种神经机制介导。这篇综述试图根据实验数据和关于前向与收敛重映射、扫视前与后扫视重映射以及空间与注意力重映射的持续争论,将各种形式的重映射组织成功能分类法。我们整合了灵长类动物神经生理学、人类神经影像学和行为以及计算模型研究的发现。最后,我们讨论了与重映射相关的持续存在的开放性问题,特别关注重映射期间空间和特征信息的绑定以及对重映射功能意义的推测。
Our visual system is fundamentally retinotopic. When viewing a stable scene, each eye movement shifts object features and locations on the retina. Thus, sensory representations must be updated, or remapped, across saccades to align pre- and post-saccadic inputs. The earliest remapping studies focused on anticipatory, pre-saccadic shifts of neuronal spatial receptive fields. Over time it has become clear that remapping can come in various flavors and may be mediated by multiple neural mechanisms. This review attempts to organize the various forms of remapping into a functional taxonomy based on experimental data and ongoing debates about forward vs. convergent remapping, pre- vs. post-saccadic remapping, and spatial vs. attentional remapping. We integrate findings from primate neurophysiological, human neuroimaging and behavioral, and computational modelling studies. We conclude by discussing persistent open questions related to remapping, with specific attention to binding of spatial and featural information during remapping and speculations about remapping’s functional significance.
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