RUI: Acoustic Detection in Free-Swimming Toadfish

RUI：自由游动蟾鱼的声学检测

• 批准号: 0316130
• 负责人: Allen Mensinger
• 金额: --
• 依托单位: University of Minnesota-Twin Cities
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2003
• 资助国家: 美国
• 起止时间: 2003-09-01 至 2009-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0316130&HistoricalAwards=false
• 关键词: RUI; Acoustic; Detection; Free; Swimming

Neuroethology involves the study of brain mechanisms underlying behavior, but requirements for restraint and anesthesia for recording stability often have made it impossible to record activity of nerve cells while an animal is behaving normally in its environment. New advances in microelectrode recording and telemetry now are making such studies possible. The study here addresses the auditory sensitivity of a hardy teleost fish, the toadfish, which has been well studied for its sound production and hearing related to social and mating behavior. However, the specific parameters of the calls that guide female toadfish and mate selection under field conditions are poorly understood. The sound environment in shallow water is complex, and how females discriminate among sound sources is unclear. This project uses innovative novel technology and telemetry, including a multichannel 'sieve' electrode through which the auditory nerve has regenerated to allow long-term recording from single nerve fibers, and an implantable rechargeable radiotelemetry device. These experiments address physiological mechanisms underlying behavioral detection of underwater sound, detection and modulation of self-generated sound, and sound localization of relevant sources. There is some risk to this work given the technological and interpretive issues, but the potential impact is high. Results will be important beyond sensory neuroscience to neuroethology and animal behavior, and potentially to a variety of applications in engineering and robotics. This RUI activity will promote the career of a new PI who involves undergraduates, including Native Americans and other under-served groups, in an upper Midwest EPSCoR state in quality research, and who adds a unique opportunity for students to work in the summer at the outstanding facilities and educational center of the Marine Biological Laboratories in Woods Hole, Massachusetts.

神经行为学涉及行为背后的大脑机制的研究，但是为了记录稳定性而需要的约束和麻醉通常使得当动物在其环境中行为正常时不可能记录神经细胞的活动。 微电极记录和遥测技术的新进展使这类研究成为可能。本研究探讨了一种哈代硬骨鱼--蟾鱼的听觉敏感性，蟾鱼的发声和听觉与社会和交配行为有关。然而，指导女性蟾鱼和交配选择在现场条件下的具体参数的电话知之甚少。浅水中的声音环境是复杂的，女性如何区分声源尚不清楚。该项目使用创新的新技术和遥测技术，包括多通道“筛”电极，通过该电极，听觉神经已经再生，允许从单个神经纤维进行长期记录，以及植入式可充电无线电遥测设备。这些实验涉及水下声音的行为检测、自生声音的检测和调制以及相关源的声音定位的生理机制。鉴于技术和解释问题，这项工作存在一些风险，但潜在影响很大。 研究结果将超越感觉神经科学，对神经行为学和动物行为学具有重要意义，并可能对工程和机器人技术的各种应用具有重要意义。 这项RUI活动将促进新PI的职业生涯，该PI涉及本科生，包括美洲原住民和其他服务不足的群体，在上中西部EPSCoR州进行质量研究，并为学生提供了一个独特的机会，让他们在夏季在马萨诸塞州的伍兹霍尔海洋生物实验室的优秀设施和教育中心工作。