Magnetic map processing in the brain of migratory birds (Neu03)

为了全面了解磁感受和脊椎动物导航，确定参与处理从周围神经系统到达大脑的磁感觉信息的大脑区域和神经解剖学通路是很重要的。该项目旨在揭示三叉神经介导的磁接收的整个神经回路，从喙的远端终端直到磁信息到达端脑（用于多感觉整合）。我们将结合使用神经元追踪技术和检测磁场触发的反映神经元激活的即时早期基因的表达。为了明确显示三叉神经各组成部分的生物学相关性，我们将结合显微外科方法和行为定向实验。

To achieve a comprehensive understanding of magnetoreception and vertebrate navigation, it is important to identify the brain regions and neuroanatomical pathways that are involved in processing the magnetic sensory information arriving in the brain from the peripheral nervous system. This project aims to reveal the entire neuronal circuitry underlying trigeminally mediated magnetoreception from distal terminations in the beak until magnetic information reaches the telencephalon (for multisensory integration). We will use a combination of neuronal tracing techniques and the detection of magnetic field-triggered expression of immediate early genes reflecting neuronal activation. To unequivocally show the biological relevance of each of the trigeminal components, we will combine microsurgical approaches with behavioural orientation experiments.