Perception and Representation of Shape

物体识别的一个基本问题是形状的感知及其皮层表征。本研究结合心理物理学、计算分析和生理学知识，对这一问题进行了探讨，以期对这一现象及其神经机制进行重新评价。具体而言，我们研究了以下问题，并为潜在机制提供了证据：（1）BO选择性神经元分组/同步以产生表面/图形的机制，（2）诱导图形/表面的感知因素，（3）曲率选择性的生成原理，以及（4）视觉皮层中形状的中轴表征。

A fundamental problem towards objedt recognition is the perception of shape and its cortical representation. The present study approached this problem by integrating psychophysics, computational analyses and physiological knowledge, in order to reval the percepual phenomena and underlying neural mechanisms. Specifically, we investigated the following problems and provided evidence for the underlying mechanisms: (1) mechanisms to group/synchoronize BO selective neurons to produce surface/figure, (2) perceptual factors that induce figure/surface, (3) generation principle for curvature selectivity, and (4) medial axis representation of shape in the visual cortex.