STN-DBS frequency-tuned beta subband dynamics are associated with speech tempo in Parkinson's disease
Haiyu Tian, Yuxuan WuiD, Yu Fan, Zixiao YiniD, Yi GuoiD, F D MengiD, Jianguo ZhangiD, Huiling Yu, Luming LiiD
Abstract
In Parkinsons disease, subthalamic nucleus deep brain stimulation (STN-DBS) frequency modulates narrow beta subbands, with low-frequency stimulation (LFS) selectively attenuating 15-23 Hz power. The negative association between this subband and speech tempo, together with the LFS-related improvement in articulatory rate, suggests that 15-23 Hz subband dynamics may serve as a candidate neural marker associated with speech tempo modulation.
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