Transcranial focused ultrasound-mediated neurochemical and functional connectivity changes in deep cortical regions in humans
Transcranial focused ultrasound-mediated neurochemical and functional connectivity changes in deep cortical regions in humans
复制标题
经颅聚焦超声介导的人类深层皮质区域神经化学和功能连接的变化
DOI:
10.1101/2023.01.20.524869
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发表时间:
2023
期刊:
影响因子:
--
通讯作者:
Yaakub S
中科院分区:
文献类型:
--
作者:
Yaakub S
Low-intensity transcranial ultrasound stimulation (TUS) is an emerging non-invasive technique for focally modulating human brain function. The mechanisms and neurochemical substrates underlying TUS neuromodulation in humans and how these relate to excitation and inhibition are still poorly understood. In 24 healthy controls, we separately stimulated two deep cortical regions and investigated the effects of theta-burst TUS, a protocol shown to increase corticospinal excitability, on the inhibitory neurotransmitter gamma-aminobutyric acid (GABA) and functional connectivity. We show that theta-burst TUS in humans selectively reduces GABA levels in the posterior cingulate, but not the dorsal anterior cingulate cortex. Functional connectivity increased following TUS in both regions. Our findings suggest that TUS changes overall excitability by reducing GABAergic inhibition and that changes in TUS-mediated neuroplasticity last at least 50 mins after stimulation. The difference in TUS effects on the posterior and anterior cingulate could suggest state- or location-dependency of the TUS effect—both mechanisms increasingly recognized to influence the brain’s response to neuromodulation.
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影响因子:
7.7
作者:
S. N. Yaakub;T. White;E. Kerfoot;L. Verhagen;A. Hammers;E. Fouragnan
通讯作者:
E. Fouragnan
影响因子:
2.4
作者:
Wise, Elliott S.;Cox, B. T.;Treeby, Bradley E.
通讯作者:
Treeby, Bradley E.
DOI:
10.1073/pnas.2206828119
发表时间:
2022-11-16
影响因子:
11.1
作者:
通讯作者:
--
影响因子:
13.6
作者:
Folloni D;Fouragnan E;Wittmann MK;Roumazeilles L;Tankelevitch L;Verhagen L;Attali D;Aubry JF;Sallet J;Rushworth MFS
通讯作者:
Rushworth MFS
DOI:
--
发表时间:
2016
期刊:
影响因子:
--
作者:
Teiichiro Ikeda;Shin Yoshizawa;Norihiro Koizumi;Mamoru Mitsuishi;Yoichiro Matsumoto
通讯作者:
Yoichiro Matsumoto