International Research Fellow Awards: Coordination of Optokinesis & Locomotion during Visual Course-Control in an Invertebrate Model System

9704097 Layne国际研究员奖励计划使美国科学家和工程师能够在国外进行三到二十四个月的研究。该计划的奖励为联合研究提供了机会，并利用独特或互补的设施、专业知识和国外的实验条件。该奖项将支持John E. Layne博士与William J. P. Barnes博士在苏格兰格拉斯哥大学进行为期12个月的博士后研究访问。Layne博士将研究蓝地蟹运动过程中过程控制的生理机制。这将通过一项实验室研究，其中来自视觉和静止囊中间神经元、眼杯运动神经元和肌肉的细胞外记录将与由视野和身体旋转引起的眼睛和腿部运动的测量相关联。相关的野外研究将通过破坏螃蟹的感觉引导系统（视觉、静囊器官），观察螃蟹在自然环境中运动时如何利用视觉信息，并观察其对基本运动和定向行为（逃跑、归巢）的影响。本研究将提供对视觉流分析过程的理解。宿主实验室是环境与进化生物学部门的一部分，该部门包括几位行为科学家。它还将与生物医学和生命科学研究所其他部门的神经科学家建立密切联系。主持人巴恩斯博士多年来一直从行为层面研究眼球运动，并建立了目前无脊椎动物的mr流场分析行为模型。＊＊＊

9704097 Layne The International Research Fellow Awards Program enables U.S. scientists and engineers to conduct three to twenty four months of research abroad. The program's awards provide opportunities for joint research, and the use of unique or complementary facilities, expertise and experimental conditions abroad. This award will support a twelve-month postdoctoral research visit by Dr. John E. Layne to work with Dr. William J. P. Barnes at the University of Glasgow in Scotland. Dr. Layne will examine the physiological mechanisms that underlie the course control during locomotion in the Blue Land Crab, Cardisoma guanhumi. This will by a lab study in which extracellular recordings from visual and statocyst interneurons, eyecup motoneurones and muscles will be correlated with measurements of the eye and leg movements induced by rotation of the visual field and of the body. A related field study will be done to observe how crabs make use of visual information during locomotion in their natural environment, by disrupting their sensory guidance systems (vision, statocyst organ), and observing its affect on basic locomotion and oriented behavior (escape, homing). This study will provide an understanding of the process of visual flow analysis. The host lab is part of the Division of Environmental and Evolutionary Biology, which contains several behavioral scientists. It will also provide close links with neuroscientists in other divisions of the Institute of Biomedical and Life Sciences. The host, Dr. Barnes, has studied eye movements at a behavioral level for many years, and has established the current behavioral models fmr flow field analysis in invertebrates. ***