Therapeutic deep brain stimulation reduces cortical phase-amplitude coupling in Parkinson's disease.

Therapeutic deep brain stimulation reduces cortical phase-amplitude coupling in Parkinson's disease.
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治疗性深部脑刺激可减少帕金森病的皮层相位-幅度耦合。

DOI:
10.1038/nn.3997
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发表时间:
2015-05
影响因子:
25
通讯作者:
Starr, Philip A.
Starr, Philip A.
中科院分区:
医学1区
文献类型:
--
作者:
de Hemptinne, Coralie;Swann, Nicole C.;Ostrem, Jill L.;Ryapolova-Webb, Elena S.;San Luciano, Marta;Galifianakis, Nicholas B.;Starr, Philip A.

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脑深部电刺激(DBS)越来越多地应用于脑部疾病的治疗,但其作用机制尚不清楚。在这里,我们利用有创性皮层记录评估基底神经节DBS对帕金森病(PD)患者接受DBS植入手术的皮质功能的影响。在PD患者的初级运动皮层中,神经元群峰与网络振荡相过度同步。这在脑表面记录中表现为β节律相位和宽带活动振幅之间的夸张耦合。我们表明,急性治疗性DBS在与帕金森运动体征减少相似的时间过程中可逆地减少相振幅相互作用。我们认为基底节区DBS通过减轻运动皮层神经元过度的β相锁定来改善皮质功能。
Deep brain stimulation (DBS) is increasingly applied to the treatment of brain disorders, but its mechanism of action remains unknown. Here, we evaluate the effect of basal ganglia DBS on cortical function using invasive cortical recordings in Parkinson's disease (PD) patients undergoing DBS implantation surgery. In the primary motor cortex of PD patients neuronal population spiking is excessively synchronized to the phase of network oscillations. This manifests in brain surface recordings as exaggerated coupling between the phase of the β rhythm and the amplitude of broadband activity. We show that acute therapeutic DBS reversibly reduces phase-amplitude interactions over a similar time course as reduction in parkinsonian motor signs. We propose that DBS of the basal ganglia improves cortical function by alleviating excessive β phase locking of motor cortex neurons.
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发表时间: 2009-10-28
期刊: The Journal of neuroscience : the official journal of the Society for Neuroscience
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