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首页> 外文期刊>Neuron >Cocaine Place Conditioning Strengthens Location-Specific Hippocampal Coupling to the Nucleus Accumbens
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Cocaine Place Conditioning Strengthens Location-Specific Hippocampal Coupling to the Nucleus Accumbens

机译:可卡因放置调理加强特定地点的海马偶联与核心偶然偶联

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摘要

Conditioned place preference (CPP) is a widely used model of addiction-related behavior whose underlying mechanisms are not understood. In this study, we used dual site silicon probe recordings in freely moving mice to examine interactions between the hippocampus and nucleus accumbens in cocaine CPP. We found that CPP was associated with recruitment of D2-positive nucleus accumbens medium spiny neurons to fire in the cocaine-paired location, and this recruitment was driven predominantly by selective strengthening of coupling with hippocampal place cells that encode the cocaine-paired location. These findings providein?vivoevidence suggesting that the synaptic potentiation in the accumbens caused by repeated cocaine administration preferentially affects inputs that were active at the time of drug exposure. This provides a potential physiological mechanism by which drug use becomes associated with specific environmental contexts.
机译:条件的地方偏好(CPP)是一种广泛使用的瘾相关行为模型,其潜在机制不了解。 在这项研究中,我们在自由移动的小鼠中使用了双部位硅探针记录,以检查可卡因CPP中海马和核心腺之间的相互作用。 我们发现CPP与D2阳性核的募集有关,在可卡因配对位置中募集到火灾中,通过选择性加强与编码可卡因的海马局部细胞的偶联,这募集主要驱动该募集。 这些发现提供了?体内表明,由反复的可卡因给药引起的口腔突触潜力优先影响在药物暴露时活跃的输入。 这提供了一种潜在的生理机制,药物使用与特定的环境背景相关。

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