Departamento de Neurociencias Integrativas y Computacionales, Instituto de Investigaciones Biológicas Clemente Estable, Montevideo, Uruguay.
Interdiscip Sci. 2010 Dec;2(4):291-307. doi: 10.1007/s12539-010-0049-2. Epub 2010 Dec 12.
This review addresses the biophysical mechanisms of image formation in electrosensory systems. These electrical images are used for navigation and object detection by many species of fish, some amphibians, and some mammals. In the active electrosensory systems of fish these images are formed by the fish's own electric organ discharge. In the passive electrosensory systems of fish, amphibians and mammals the images are formed by external electrical sources. In this review we describe the biophysics of image formation, the effects of the organism's passive electrical properties, the role of exploration, and the influence of context on electroreception. We suggest that the basic principles established in these specialized systems be useful for understanding other more common sensory systems.
本文综述了电感受系统中图像形成的生物物理机制。这些电图像被许多鱼类、一些两栖类和一些哺乳类动物用于导航和目标检测。在鱼类的主动电感受系统中，这些图像是由鱼类自身的放电器官形成的。在鱼类、两栖类和哺乳类动物的被动电感受系统中，图像是由外部电源形成的。在这篇综述中，我们描述了图像形成的生物物理学、生物体的被动电特性的影响、探索的作用以及环境对电感受的影响。我们认为，在这些专门的系统中建立的基本原理对于理解其他更常见的感觉系统是有用的。
