Face-infringement space: the frame of reference of the ventral intraparietal area.
Face-infringement space: the frame of reference of the ventral intraparietal area.
复制标题
面部侵犯空间：腹侧顶内区域的参考系。
DOI：
10.1007/s00422-012-0491-9
复制
发表时间：
2012
影响因子：
1.9
通讯作者：
Graf,Werner
中科院分区：
文献类型：
--
作者：
McCollum,Gin;Klam,Francois;Graf,Werner
实验研究表明，腹侧顶内区(VIP)神经元的反应专用于头部运动和头部附近的环境。VIP神经元对视觉、听觉和触觉刺激、顺畅的追逐眼球运动以及头部的被动和主动运动做出反应。这项研究通过整合一整套涉及面子侵犯的变量，在更高的组织层面上展示了VIP内部创建的数学结构。我们不是将动力学放在一个先验定义的坐标系中，例如物理空间的坐标系中，而是将神经元感受野组合在一起，以找出VIP神经元共同覆盖的变量空间。第一节介绍了神经元作为多维数学对象的观点。每个VIP神经元占据或对感觉运动相空间中的一个区域做出反应，从而统一了与不同感觉形式和运动相关的变量。在一个神经元上的收敛在功能上连接变量，就像空间和时间在相对论物理学中连接形成统一的时空一样。位置和运动的空间共同形成了一个神经元相空间，连接了神经生理学和面部侵犯的物理学。在简要回顾了实验文献之后，基于实验数据，对VIP所固有的神经元相空间进行了顺序表征。神经元的反应表明变量可以作为神经参照系的轴，神经元反应在本研究中也是如此使用的。VIP感受场覆盖的感觉和运动变量空间将视觉和听觉空间连接到与身体有关的感觉形式：躯体感觉和惯性感觉。这种以自我为中心和以自我为中心的模式的结合，与人类和猴子的顶叶与空间中的自我感觉和偏向的已知关系是一致的。在这个归纳步骤之后，变量根据图论的数学被形式化，以推断哪些组合是作为一个多维神经结构完成的，该多维神经结构为有机体提供了关于影响面部的物体的一整套选择，如接受、追逐和回避。我们考虑四种基本变量类型：面部和外部对象的位置和运动。形式化这四种类型的变量允许我们将其推广到任何感觉系统，并确定神经中枢(例如，大脑皮层区域)提供面部侵犯空间的充要条件。我们证明，VIP至少包括一个这样的面子侵权空间。
Experimental studies have shown that responses of ventral intraparietal area (VIP) neurons specialize in head movements and the environment near the head. VIP neurons respond to visual, auditory, and tactile stimuli, smooth pursuit eye movements, and passive and active movements of the head. This study demonstrates mathematical structure on a higher organizational level created within VIP by the integration of a complete set of variables covering face-infringement. Rather than positing dynamics in an a priori defined coordinate system such as those of physical space, we assemble neuronal receptive fields to find out what space of variables VIP neurons together cover. Section 1 presents a view of neurons as multidimensional mathematical objects. Each VIP neuron occupies or is responsive to a region in a sensorimotor phase space, thus unifying variables relevant to the disparate sensory modalities and movements. Convergence on one neuron joins variables functionally, as space and time are joined in relativistic physics to form a unified spacetime. The space of position and motion together forms a neuronal phase space, bridging neurophysiology and the physics of face-infringement. After a brief review of the experimental literature, the neuronal phase space natural to VIP is sequentially characterized, based on experimental data. Responses of neurons indicate variables that may serve as axes of neural reference frames, and neuronal responses have been so used in this study. The space of sensory and movement variables covered by VIP receptive fields joins visual and auditory space to body-bound sensory modalities: somatosensation and the inertial senses. This joining of allocentric and egocentric modalities is in keeping with the known relationship of the parietal lobe to the sense of self in space and to hemineglect, in both humans and monkeys. Following this inductive step, variables are formalized in terms of the mathematics of graph theory to deduce which combinations are complete as a multidimensional neural structure that provides the organism with a complete set of options regarding objects impacting the face, such as acceptance, pursuit, and avoidance. We consider four basic variable types: position and motion of the face and of an external object. Formalizing the four types of variables allows us to generalize to any sensory system and to determine the necessary and sufficient conditions for a neural center (for example, a cortical region) to provide a face-infringement space. We demonstrate that VIP includes at least one such face-infringement space.