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Neuronal Circuits for Fear Expression and Recovery: Recent Advances and Potential Therapeutic Strategies

机译:恐惧表达和恢复的神经元回路:最新进展和潜在的治疗策略。

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摘要

Recent technological developments, such as single unit recordings coupled to optogenetic approaches, have provided unprecedented knowledge about the precise neuronal circuits contributing to the expression and recovery of conditioned fear behavior. These data have provided an understanding of the contributions of distinct brain regions such as the amygdala, prefrontal cortex, hippocampus, and periaqueductal gray matter to the control of conditioned fear behavior. Notably, the precise manipulation and identification of specific cell types by optogenetic techniques have provided novel avenues to establish causal links between changes in neuronal activity that develop in dedicated neuronal structures and the short and long-lasting expression of conditioned fear memories. In this review, we provide an update on the key neuronal circuits and cell types mediating conditioned fear expression and recovery and how these new discoveries might refine therapeutic approaches for psychiatric conditions such as anxiety disorders and posttraumatic stress disorder.
机译:最近的技术发展,例如与光遗传学方法相结合的单个单元记录,已经提供了有关精确神经元回路的新知识,这些神经回路有助于条件恐惧行为的表达和恢复。这些数据提供了对不同的大脑区域(如杏仁核,前额叶皮层,海马和导水管周围灰质)对条件性恐惧行为控制的贡献的理解。值得注意的是,通过光遗传学技术对特定细胞类型的精确操纵和鉴定为在专用神经元结构中发展的神经元活动变化与条件恐惧记忆的短期和长期表达之间建立因果联系提供了新途径。在这篇综述中,我们提供了介导条件性恐惧表达和恢复的关键神经元回路和细胞类型的最新动态,以及这些新发现如何改善精神疾病(如焦虑症和创伤后应激障碍)的治疗方法。

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