Human subthalamic nucleus neurons differentially encode speech and limb movement.

Human subthalamic nucleus neurons differentially encode speech and limb movement.
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人类底丘脑核神经元对言语和肢体运动进行差异编码。

DOI:
10.3389/fnhum.2023.962909
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发表时间:
2023
影响因子:
2.9
通讯作者:
Greenlee, Jeremy D. W.
Greenlee, Jeremy D. W.
中科院分区:
医学3区
文献类型:
--
作者:
Johari, Karim;Kelley, Ryan M.;Tjaden, Kris;Patterson, Charity G.;Rohl, Andrea H.;Berger, Joel I.;Corcos, Daniel M.;Greenlee, Jeremy D. W.

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丘脑下核(STN)脑深部电刺激(DBS)持续改善肢体运动功能,但对帕金森病(PD)患者的语言功能却有不同的影响。对这种差异的一种可能解释是,STN神经元可能对语言和肢体运动进行不同的编码。然而,这一假设尚未得到验证。我们通过记录12例PD患者的69个单单元和多单元神经元簇来研究STN是如何被肢体运动和语言调节的。研究结果表明:(1)STN神经元放电速率在言语和肢体运动中有不同的调节模式;(2)言语运动对STN神经元的调节比肢体运动对STN神经元的调节多;(3)与肢体运动相比,说话时神经元放电率总体增加;(4)病程越长,放电率越高。这些数据为STN神经元在语言和肢体运动中的作用提供了新的见解。
Deep brain stimulation (DBS) of the subthalamic nucleus (STN), which consistently improves limb motor functions, shows mixed effects on speech functions in Parkinson’s disease (PD). One possible explanation for this discrepancy is that STN neurons may differentially encode speech and limb movement. However, this hypothesis has not yet been tested. We examined how STN is modulated by limb movement and speech by recording 69 single- and multi-unit neuronal clusters in 12 intraoperative PD patients. Our findings indicated: (1) diverse patterns of modulation in neuronal firing rates in STN for speech and limb movement; (2) a higher number of STN neurons were modulated by speech vs. limb movement; (3) an overall increase in neuronal firing rates for speech vs. limb movement; and (4) participants with longer disease duration had higher firing rates. These data provide new insights into the role of STN neurons in speech and limb movement.
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