Department of Psychological Sciences, Vanderbilt University, Nashville, Tennessee, USA; email:
Center for Visual Science, Rochester University, Rochester, New York, USA.
Annu Rev Vis Sci. 2022 Sep 15;8:345-360. doi: 10.1146/annurev-vision-100720-112922. Epub 2022 Jun 8.
Our brains devote substantial resources to creating a singular, coherent view from the two images in our eyes. Both anatomical and functional studies have established that the underlying fusion of monocular signals into a combined binocular response starts within the first synapses downstream from our eyes. Long-standing consensus held that the two eyes' signals remain largely segregated until they are combined by neurons in the upper layers of the primary visual cortex. However, new experimental data challenge this classic model, suggesting that there are pronounced earlier interactions between the two eyes' streams of activation. In this article, we review the literature and detail how these findings can be functionally interpreted in context with previously established psychophysical models of binocular vision.
我们的大脑投入了大量资源,从我们眼睛中的两个图像中创建一个单一的、连贯的视图。解剖学和功能研究都已经确定,从我们眼睛的下游第一个突触开始,将单眼信号融合成一个综合的双眼反应。长期以来的共识认为,直到两个眼睛的信号在初级视觉皮层的上层神经元中结合之前,它们仍然基本是分开的。然而,新的实验数据挑战了这一经典模型,表明在两个眼睛的激活流之间存在明显的早期相互作用。在本文中,我们回顾了文献,并详细说明了这些发现如何与之前建立的双眼视觉心理物理模型相结合,在功能上进行解释。