Eaton R C, Popper A N
Department of Biology (EPO), University of Colorado at Boulder 80309, USA.
Brain Behav Evol. 1995;46(3):124-30. doi: 10.1159/000113265.
This paper is an overview of some of the major points to arise in the accompanying contributions of this special symposium issue. The symposium papers arose out of discussions among investigators interested in the inner ear and Mauthner cell, with the focus on hydrodynamic components that activate the Mauthner cell through the octavolateralis system. The intention of the symposium was to investigate the possibility of using our knowledge of the Mauthner system to help understand acoustic processing by the ear, and of using our knowledge of fish hearing to better understand Mauthner cell function. This is the first attempt to take a broad look at both systems to see how they might function together. As such, these proceedings can serve as a mini-tutorial for investigators interested in one system or the other. In this summary paper we also identify some of the major uncertainties in our understanding of the ear-Mauthner connection. These include questions about: (1) the identity of the acoustic stimuli that are neuroethologically relevant to the Mauthner system; (2) the relative importance of the various octavolateralis inputs (acoustic, vestibular, or lateral line); (3) the contribution of the different various acoustic endorgans to the Mauthner system; (4) whether the Mauthner system can distinguish sound source location, and (5) whether Mauthner neurobiology is compatible with the prevailing model (the phase model) for determining sound source location by fishes. We believe these issues provide potentially useful avenues of future investigation that should give important insights in both acoustic processing by fish and the function of the mauthner system.
本文概述了本次专题研讨会特刊中一些主要论文所提出的要点。这些研讨会论文源于对内耳和毛特纳细胞感兴趣的研究人员之间的讨论，重点是通过八侧线系统激活毛特纳细胞的流体动力学成分。该研讨会的目的是研究利用我们对毛特纳系统的了解来帮助理解耳朵的声学处理过程，以及利用我们对鱼类听觉的了解来更好地理解毛特纳细胞功能的可能性。这是首次尝试全面审视这两个系统，以了解它们如何协同工作。因此，这些论文集可以为对其中一个系统感兴趣的研究人员提供一个小型教程。在这篇总结性论文中，我们还指出了在理解耳朵与毛特纳细胞的联系方面存在的一些主要不确定性。这些问题包括：（1）与毛特纳系统在神经行为学上相关的声学刺激的特性；（2）各种八侧线输入（声学、前庭或侧线）的相对重要性；（3）不同的各种声学终器对毛特纳系统的贡献；（4）毛特纳系统是否能够区分声源位置；以及（5）毛特纳神经生物学是否与鱼类确定声源位置的主流模型（相位模型）兼容。我们相信这些问题为未来的研究提供了潜在有用的途径，应该能为鱼类的声学处理和毛特纳系统的功能提供重要的见解。
