Amygdala microcircuits controlling learned fear.

Amygdala microcircuits controlling learned fear.
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DOI:
10.1016/j.neuron.2014.04.042
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发表时间:
2014-06-04
期刊:
影响因子:
16.2
通讯作者:
Pare D
Pare D
中科院分区:
医学1区
文献类型:
--
作者:
Duvarci S;Pare D

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我们回顾了最近的工作中的作用,内在杏仁核网络的经典条件防御行为的调节,通常被称为条件恐惧。这些新的发展突出了条件性恐惧如何依赖于比最初设想的复杂得多的网络。事实上,多个平行的抑制和兴奋回路的差异招聘过程中的表达与灭绝的条件性恐惧。此外,表达和消退回路之间的转换涉及与内侧前额叶皮层不同区域的协调互动。然而,关键领域的不确定性仍然存在,特别是在不同细胞类型的连接方面。填补我们知识中的这些空白很重要,因为许多证据表明,人类焦虑症是由支持恐惧学习的网络的异常调节引起的。
We review recent work on the role of intrinsic amygdala networks in the regulation of classically conditioned defensive behaviors, commonly known as conditioned fear. These new developments highlight how conditioned fear depends on far more complex networks than initially envisioned. Indeed, multiple parallel inhibitory and excitatory circuits are differentially recruited during the expression versus extinction of conditioned fear. Moreover, shifts between expression and extinction circuits involve coordinated interactions with different regions of the medial prefrontal cortex. However, key areas of uncertainty remain, particularly with respect to the connectivity of the different cell types. Filling these gaps in our knowledge is important because much evidence indicates that human anxiety disorders results from an abnormal regulation of the networks supporting fear learning.
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