Mechanisms of Emotional Memory

情绪记忆的机制

• 批准号: 7173313
• 负责人: JOSEPH E LEDOUX
• 金额: $ 12.15万
• 依托单位: NEW YORK UNIVERSITY
• 依托单位国家: 美国
• 财政年份: 2003
• 资助国家: 美国
• 起止时间: 2003-02-01 至 2008-01-31
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/7173313
• 关键词: Acute; Address; Amygdaloid structure; Animal Model; Animals; Anxiety; Anxiety Disorders; Area; Award; Basic Science; Behavior; Behavior Control; Behavioral; Brain; Calcium Channel; Cell Nucleus; Chronic; Cognitive; Depth; Disease; Emotional; Event; Extinction (Psychology); Foundations; Fright; Functional Imaging; Functional Magnetic Resonance Imaging; Funding; Gene Proteins; Genes; Grant; Human; In Vitro; Information Storage; International; Lateral; Learning; Lesion; Life; Memory; Mental disorders; Microarray Analysis; Modeling; Modems; Molecular; N-Methyl-D-Aspartate Receptors; National Institute of Mental Health; Nature; Neural Pathways; Neurologic; Neurosciences; Numbers; Patients; Physiology; Process; Psyche structure; Rattus; Reaction; Relative (related person); Research; Role; Second Messenger Systems; Selective Serotonin Reuptake Inhibitor; Senior Scientist Award; Signaling Pathway Gene; Site; Stimulus; Stress; Synaptic Transmission; Synaptic plasticity; System; Techniques; Training; Work; base; career; cognitive control; conditioned fear; frontier; improved; in vivo; insight; interest; neuromechanism; programs; receptor; relating to nervous system; response; second messenger; voltage; volunteer

DESCRIPTION (provided by applicant): Considerable evidence points to the amygdala, and specifically its lateral nucleus (LA), as a key site of the plasticity underlying the learning and storage of information about threatening or harmful life events. Most of what is known about this form of learning and memory has come from studies of classical or Pavlovian fear conditioning. The candidate for this K05 Award has contributed significantly to this body of work on the role of the amygdala in fear conditioning. His career plans include additional training in several areas that will allow him to pursue new lines of work on this topic. Specifically, he seeks training in molecular neuroscience and functional imaging of the human brain, and also hopes to achieve a deeper understanding of fear/anxiety disorders. He has assembled an international team of collaborators who will guide his training in these areas. Four sets of studies will be performed, each of which represents a funded area of research. The first project attempts to understand in greater detail the neural system underlying fear conditioning, and to determine how this basic circuitry interacts with systems involved in cognitive control over mental and behavioral functions. The second project addresses questions about the cellular and molecular mechanisms that underlie fear conditioning and attempts to learn more about the receptor mechanisms, signaling pathways, genes, and proteins involved. The next two projects use functional imaging (fMRI) to examine the mechanisms of fear in normal humans (project 3) pathological fear in patients with anxiety disorders (project 4). Together, these studies should reveal new information about the neural basis of fear learning and memory at the systems, cellular and molecular levels, and should provide a better understanding of how fear mechanisms in experimental animals relate to brain mechanisms in normal humans and patients with anxiety disorders.

描述（由申请人提供）：大量证据表明杏仁核，特别是其外侧核（LA），是学习和储存有关威胁或有害生活事件信息的可塑性的关键部位。关于这种学习和记忆形式的大部分知识都来自经典或巴甫洛夫恐惧条件反射的研究。K 05奖的候选人对杏仁核在恐惧条件反射中的作用的研究做出了重大贡献。他的职业计划包括在几个领域的额外培训，这将使他能够在这个主题上从事新的工作。具体来说，他寻求在分子神经科学和人类大脑的功能成像的培训，也希望实现对恐惧/焦虑症的更深入的了解。他已经组建了一个国际合作者团队，他们将指导他在这些领域的培训。将进行四组研究，每组代表一个受资助的研究领域。第一个项目试图更详细地了解恐惧条件反射背后的神经系统，并确定这种基本回路如何与涉及对心理和行为功能的认知控制的系统相互作用。第二个项目解决了有关恐惧条件反射的细胞和分子机制的问题，并试图了解更多有关受体机制，信号通路，基因和蛋白质的信息。接下来的两个项目使用功能成像（fMRI）来检查正常人的恐惧机制（项目3）和焦虑症患者的病理性恐惧（项目4）。总之，这些研究应该在系统、细胞和分子水平上揭示关于恐惧学习和记忆的神经基础的新信息，并应该更好地理解实验动物的恐惧机制如何与正常人和焦虑症患者的大脑机制相关。