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Continuous theta-burst stimulation over the right DLPFC modulates central executive network connectivity in depression: exploratory analysis of a randomized clinical trial.

Yun Wang·Jing Jin·Pengfei Wang·Qin Qin·Zhimin Wang·Xiongying Chen·Yuan Feng·Gang Wang·Yuan Zhou
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Abstract

Previous studies suggest that transcranial magnetic stimulation exerts antidepressant effects and is associated with alterations in functional connectivity (FC), but the neural correlates remain unclear. This exploratory sham-controlled trial investigated the effect of continuous theta-burst stimulation (cTBS) over the right dorsolateral prefrontal cortex (DLPFC) on FC in major depressive disorder (MDD). Seventy MDD patients were randomized to receive two-week treatment of personalized cTBS or sham stimulation. Resting-state fMRI was performed at baseline and post-treatment. Ultimately, 31 patients in the active cTBS group and 28 patients in the sham group passed imaging quality control and were included in the final analysis. To identify the FC that may have been influenced by cTBS treatment, two complementary FC analyses were conducted: (1) voxel-wise degree centrality (DC) followed by seed-based FC, and (2) an individual FC analysis based on the stimulation targets. Furthermore, correlations between FC changes and clinical symptoms improvement were examined. Both groups exhibited reductions of depression scores, with greater improvement in the active group. Compared to the sham group, active cTBS showed increased DC in the precuneus and elevated FC between the precuneus (within the para-cingulate network) and the right inferior parietal lobule (IPL) and DLPFC. Further stimulation target-based analysis revealed increased FC between stimulation targets and both the precuneus and visual regions following treatment. Our findings reveal neural changes associated with cTBS over the right DLPFC in MDD, notably involving the precuneus and its connectivity with the right IPL/DLPFC, suggesting alterations within the central executive network. TRIAL REGISTRATION: chictr.org.cn; ChiCTR2300068273.

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HumansMajor Depressive DisorderTranscranial Magnetic StimulationDorsolateral Prefrontal CortexFemaleMagnetic Resonance ImagingMaleAdultMiddle AgedTheta RhythmExecutive FunctionNerve NetParietal LobeTreatment OutcomePrefrontal CortexCentral executive networkContinuous theta-burst stimulationDorsolateral prefrontal cortexFunctional connectivityMajor depressive disorderJournal ArticleRandomized Controlled Trial

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Yun Wang, Jing Jin, Pengfei Wang, Qin Qin, Zhimin Wang, Xiongying Chen, Yuan Feng, Gang Wang, Yuan Zhou. 2026-07-17. Continuous theta-burst stimulation over the right DLPFC modulates central executive network connectivity in depression: exploratory analysis of a randomized clinical trial.. https://doi.org/10.1016/j.jad.2026.122283

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Journal Article; Randomized Controlled Trial resourceAdult subjectCentral executive network subjectContinuous theta-burst stimulation subjectDorsolateral Prefrontal Cortex subjectExecutive Function subjectFemale subjectFunctional connectivity subjectHumans subjectJournal Article subjectMagnetic Resonance Imaging subjectMajor Depressive Disorder subjectMale subjectMiddle Aged subjectNerve Net subjectParietal Lobe subject

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