Bi-Modal Chemical and Mechanical Signal Detection

IBN：9723542 PI：ATEMA 嗅觉和味觉是检测环境中化学物质的感官，但它们不能单独发挥作用。 在与空气相比具有高粘度的水生环境中，化学“羽流”在水流中携带，并且可以在长距离内具有复杂的空间和时间结构。 水中的动物也会受到水流的水动力刺激，与缓慢漂流的水中相同的化学感应信号相比，目前还不清楚快速水流的触觉刺激如何影响化学感应输入。 该项目采用多学科方法，将甲壳类动物作为无脊椎动物化学感应系统模型，结合流体动力学、超微结构解剖学和电生理学。 将识别天线等附肢中感觉细胞的形态类型，并测试对化学感应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态信号的外周整合如何发生，其重要性超出化学传感科学到一般的感觉神经科学，并将在机器人传感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.