Howard Hughes Medical Institute, Department of Physiology and Biophysics, University of Washington, Seattle, WA 98195, USA.
Neuron. 2009 Dec 10;64(5):605-16. doi: 10.1016/j.neuron.2009.11.028.
Advances in our understanding of natural image statistics and of gain control within the retinal circuitry are leading to new insights into the classic problem of retinal light adaptation. Here we review what we know about how rapid adaptation occurs during active exploration of the visual scene. Adaptational mechanisms must balance the competing demands of adapting quickly, locally, and reliably, and this balance must be maintained as lighting conditions change. Multiple adaptational mechanisms in different locations within the retina act in concert to accomplish this task, with lighting conditions dictating which mechanisms dominate.
我们对自然图像统计和视网膜电路中增益控制的理解的进展，正在为经典的视网膜光适应问题带来新的见解。在这里，我们回顾了我们对在主动探索视觉场景过程中快速适应是如何发生的了解。适应机制必须平衡快速、局部和可靠适应的竞争需求，并且这种平衡必须随着照明条件的变化而保持。视网膜不同位置的多种适应机制协同作用来完成这项任务，而照明条件决定了哪种机制占主导地位。
