NDLI: Effective deep brain stimulation suppresses low-frequency network oscillations in the basal ganglia by regularizing neural firing patterns.

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Effective deep brain stimulation suppresses low-frequency network oscillations in the basal ganglia by regularizing neural firing patterns.

Content Provider	Semantic Scholar
Author	McConnell, George C. So, Rosa Qi Yue Hilliard, Justin D. Lopomo, Paola Grill, Warren M.
Copyright Year	2012
Abstract	Deep brain stimulation (DBS) of the subthalamic nucleus (STN) is an effective treatment for the motor symptoms of Parkinson's disease (PD). The effects of DBS depend strongly on stimulation frequency: high frequencies (>90 Hz) improve motor symptoms, while low frequencies (<50 Hz) are either ineffective or exacerbate symptoms. The neuronal basis for these frequency-dependent effects of DBS is unclear. The effects of different frequencies of STN-DBS on behavior and single-unit neuronal activity in the basal ganglia were studied in the unilateral 6-hydroxydopamine lesioned rat model of PD. Only high-frequency DBS reversed motor symptoms, and the effectiveness of DBS depended strongly on stimulation frequency in a manner reminiscent of its clinical effects in persons with PD. Quantification of single-unit activity in the globus pallidus externa (GPe) and substantia nigra reticulata (SNr) revealed that high-frequency DBS, but not low-frequency DBS, reduced pathological low-frequency oscillations (∼9 Hz) and entrained neurons to fire at the stimulation frequency. Similarly, the coherence between simultaneously recorded pairs of neurons within and across GPe and SNr shifted from the pathological low-frequency band to the stimulation frequency during high-frequency DBS, but not during low-frequency DBS. The changes in firing patterns in basal ganglia neurons were not correlated with changes in firing rate. These results indicate that high-frequency DBS is more effective than low-frequency DBS, not as a result of changes in firing rate, but rather due to its ability to replace pathological low-frequency network oscillations with a regularized pattern of neuronal firing.
Starting Page	272
Ending Page	273
Page Count	2
File Format	PDF HTM / HTML
Alternate Webpage(s)	http://www.jneurosci.org/content/jneuro/32/45/15657.full.pdf
PubMed reference number	23136407v1
Alternate Webpage(s)	https://doi.org/10.1523/JNEUROSCI.2824-12.2012
DOI	10.1523/jneurosci.2824-12.2012
Journal	The Journal of neuroscience : the official journal of the Society for Neuroscience
Volume Number	32
Issue Number	45
Language	English
Access Restriction	Open
Subject Keyword	Basal Ganglia Cell Nucleus Deep Brain Stimulation Globus Pallidus Hertz (Hz) Neurons Oxidopamine Parkinson Disease Parkinsonian Disorders Structure of subthalamic nucleus nucleus raphe pallidus pars reticulata of substantia nigra
Content Type	Text
Resource Type	Article

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Effective deep brain stimulation suppresses low-frequency network oscillations in the basal ganglia by regularizing neural firing patterns.

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