Bi-Modal Chemical and Mechanical Signal Detection

IBN：9723542 PI：阿特玛的气味和味道是检测环境中的化学物质的感官，但它们不是单独工作的。与空气相比，在黏度较高的水环境中，化学“羽流”是以水流携带的，可以在很长的距离内具有复杂的时空结构。水中的动物也受到水流的流体动力学刺激，与缓缓漂流中的相同化学感觉信号相比，急流的触觉刺激如何影响化学感觉输入在很大程度上尚不清楚。这个项目使用了一种多学科的方法，将流体力学、超微结构解剖学和电生理学结合在一起，以甲壳类动物为模型的无脊椎动物化学传感系统。将识别附属物中感觉细胞的形态类型，如天线，并测试其对化学感觉信号和机械感觉刺激组合的生理敏感性。结果将有助于确定多模式信号的外围整合可能如何发生，将超越化学感觉科学到一般的感觉神经科学，并将在机器人感觉设备的技术开发中具有潜在的应用。

IBN: 9723542 PI: ATEMA Smell and taste are senses that detect chemicals in the environment, but they do not work in isolation. In the aquatic environment with high viscosity compared to air, chemical "plumes" are carried in currents and can have complex spatial and temporal structure over long distances. Animals in the water are subject to hydrodynamic stimulation by water currents as well, and it is largely unknown how the tactile stimulation from a swift current may affect the chemosensory input, compared to the same chemosensory signal in gently drifting water. This project uses a multidisciplinary approach incorporating hydrodynamics, ultrastructural anatomy and electrophysiology on a crustacean as a model invertebrate chemosensory system. Morphological types of sensory cells in the appendages such as the antenna will be identified, and tested for physiological sensitivity to combinations of chemosensory signals and mechanosensory stimuli. Results will help determine how peripheral integration of multimodal signals might occur, will be important beyond chemosensory science to sensory neuroscience in general, and will have potential applications for technological development of robotic sensory devices.