Evolution of sensory integration in jumping spiders

跳蛛感觉统合的进化

• 批准号: 7331745
• 负责人: DAMIAN O ELIAS
• 金额: $ 4.18万
• 依托单位: UNIVERSITY OF TORONTO
• 依托单位国家: 美国
• 财政年份: 2007
• 资助国家: 美国
• 起止时间: 2007-08-01 至 2009-07-31
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/7331745
• 关键词: Animals; Automobile Driving; Behavior; Biology; Communication; Complex; Computational Technique; Computer Simulation; Courtship; Evolution; Female; Information Theory; Link; Measurement; Measures; Modality; Molecular; Motion; Movement; Nervous system structure; Neurophysiology - biologic function; Partner in relationship; Phylogenetic Analysis; Process; Property; Research; Sensory Process; Signal Transduction; Spiders; Techniques; Testing; Visual; Work; base; comparative; day; insight; male; mind control; sensory integration; success; trait

DESCRIPTION (provided by applicant): I propose to evaluate the function and evolution of multimodal signals across a jumping spider genus. My studies will develop our understanding of sensory integration and multimodal communication at multiple levels of analysis. (1) I will document the function of multimodal signaling in different species of spiders that use multimodal signaling to varying degrees by evaluating male multimodal displays and female choice based on these traits; (2) I will measure the strength of selection on uni- and multimodal traits to test hypothesis on the evolutionary mechanisms driving the evolution of complex signals and multimodal integration; (3) I will evaluate and measure the complexity of visual ornaments, dynamic movement displays, and seismic signals and, using phylogenetic techniques, empirically test hypotheses on the evolution of traits and complexity in displays; (4) I will construct a computational model for the evolution of complex character evolution and test hypotheses on increased sensory integration and species diversification; (5) I will examine hypotheses on constraints in signals. Using measurements of complexity, I will use information theory to estimate constraints on the information content of displays and then use phylogenetic analyses to test whether constraints drive the evolution of multimodal signals. This proposed project will provide important key components to understanding sensory integration in animals and will guide research into uncovering fundamental mechanisms underlying sensory processing and communication. How nervous systems integrate sensory integration is key to understanding how the brain controls behaviour. While the majority of work has focused on elucidating the molecular and cellular mechanisms underlying this process, I approach this question by taking a comparative evolutionary approach. Using modern day techniques in evolutionary biology combined with computational techniques in information theory, this research will provide insights into the processes that drive the integration of multiple inputs which will, in turn, guide the analysis of neural function to uncover fundamental mechanisms underlying sensory integration and communication.

描述（由申请人提供）：我建议评估跨跳蛛属的多模态信号的功能和演变。我的研究将发展我们对感觉整合和多模式沟通的理解，在多个层次的分析。(1)我将通过评估雄性多模态显示和基于这些特征的雌性选择来记录不同种类的蜘蛛在不同程度上使用多模态信号的多模态信号的功能：（2）我将测量单模态和多模态特征的选择强度以检验关于驱动复杂信号和多模态整合进化的进化机制的假设;（3）我将评估和测量视觉装饰，动态运动显示和地震信号的复杂性，并使用系统发育技术，经验性地检验关于特征进化和显示复杂性的假设;（四）我将构建一个复杂性格进化的计算模型，并测试关于增加感觉整合和物种的假设多样化;（5）我将检验关于信号中的约束的假设。使用测量的复杂性，我将使用信息理论来估计显示器上的信息内容的约束，然后使用系统发育分析来测试约束是否驱动多模态信号的演变。该项目将为理解动物的感觉整合提供重要的关键组成部分，并将指导研究揭示感觉处理和交流的基本机制。神经系统如何整合感觉整合是理解大脑如何控制行为的关键。虽然大部分的工作都集中在阐明这一过程的分子和细胞机制，我接近这个问题，采取比较进化的方法。利用进化生物学中的现代技术与信息论中的计算技术相结合，这项研究将深入了解驱动多个输入整合的过程，这反过来又将指导神经功能的分析，以揭示感觉整合和沟通的基本机制。