Sugihara Tadashi, Tsuji Yoshihisa, Sakai Ko
The Zanvyl Krieger Mind/Brain Institute, The Johns Hopkins University, MD 21218, USA.
J Opt Soc Am A Opt Image Sci Vis. 2007 Jan;24(1):18-24. doi: 10.1364/josaa.24.000018.
A recent physiological finding of neural coding for border ownership (BO) that defines the direction of a figure with respect to the border has provided a possible basis for figure-ground segregation. To explore the underlying neural mechanisms of BO, we investigated stimulus configurations that activate BO circuitry through psychophysical investigation of the BO-dependent tilt aftereffect (BO-TAE). Specifically, we examined robustness of the border ownership signal by determining whether the BO-TAE is observed when gestalt factors are broken. The results showed significant BO-TAEs even when a global shape was not explicitly given due to the ambiguity of the contour, suggesting a contour-independent mechanism for BO coding.
最近一项关于边界所有权（BO）神经编码的生理学发现为图形-背景分离提供了可能的基础，该发现定义了图形相对于边界的方向。为了探究BO潜在的神经机制，我们通过对依赖于边界所有权的倾斜后效（BO-TAE）进行心理物理学研究，调查了激活BO神经回路的刺激配置。具体而言，我们通过确定在格式塔因素被打破时是否能观察到BO-TAE，来检验边界所有权信号的稳健性。结果显示，即使由于轮廓的模糊性未明确给出全局形状时，仍存在显著的BO-TAE，这表明存在一种与轮廓无关的边界所有权编码机制。
Zotero 插件