Role of the bed nucleus of the stria terminalis in the control of ventral tegmental area dopamine neurons.

Role of the bed nucleus of the stria terminalis in the control of ventral tegmental area dopamine neurons.
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DOI:
10.1016/j.pnpbp.2009.07.010
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发表时间:
2009-11-13
影响因子:
5.6
通讯作者:
Georges, Francois
Georges, Francois
中科院分区:
医学2区
文献类型:
--
作者:
Jalabert, Marion;Aston-Jones, Gary;Herzog, Etienne;Manzoni, Olivier;Georges, Francois

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尾纹床核(BST)神经元向腹侧被盖区(VTA)的投射是与奖励和动机相关的行为的关键。在过去的几年里,我们进行了一系列的研究,以了解:1)兴奋性输入如何调节BST神经元的体内兴奋特性,以及2)BST输入如何反过来调节VTA中多巴胺神经元的神经元活动。利用麻醉大鼠的体内细胞外记录技术和通道追踪方法,我们证明了来自边缘下皮层和腹侧耻骨下带的输入对投射到VTA的BST神经元产生强烈的兴奋影响。因此,BST在接收情感和学习相关信息并将这些信息整合到奖励/动机回路中具有独特的地位。我们将讨论投射到VTA的BST神经元活动的变化如何参与精神疾病(如药物成瘾)的发展或恶化。
Projections from neurons of the bed nucleus of the stria terminalis (BST) to the ventral tegmental area (VTA) are crucial to behaviors related to reward and motivation. Over the past few years, we have undertaken a series of studies to understand: 1) how excitatory inputs regulate in vivo excitable properties of BST neurons, and 2) how BST inputs in turn modulate neuronal activity of dopamine neurons in VTA. Using in vivo extracellular recording techniques in anesthetized rats and tract-tracing approaches, we have demonstrated that inputs from the infralimbic cortex and the ventral subiculum exert a strong excitatory influence on BST neurons projecting to the VTA. Thus, the BST is uniquely positioned to receive emotional and learning-associated informations and to integrate these into the reward/motivation circuitry. We will discuss how changes in the activity of BST neurons projecting to the VTA could participate in the development or exacerbation of psychiatric conditions such as drug addiction.
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