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Published on: July 2, 2013
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High-Frequency Repetitive Transcranial Magnetic Stimulation on the Left Parietal Lobe Improves Post-Stroke Memory
Luhui Cai1, Yuye Sun2, Yijiang Li3
1Department of Neurological Rehabilitation, Jiangbin Hospital of Guangxi Zhuang Autonomous Region, Nanning, China.
Brain and Behavior
|March 31, 2026
Summary
High-frequency repetitive transcranial magnetic stimulation (rTMS) applied to the left parietal lobe significantly improved memory function in stroke patients. This treatment enhanced brain network connectivity, offering a promising therapeutic approach for post-stroke memory deficits.
Area of Science:
- Neuroscience
- Neurology
- Cognitive Science
Background:
- Memory impairment is a common and debilitating consequence of stroke.
- Current cognitive rehabilitation therapies have limited efficacy in restoring memory function.
- Investigating novel therapeutic interventions for post-stroke memory deficits is crucial.
Purpose of the Study:
- To evaluate the efficacy of high-frequency repetitive transcranial magnetic stimulation (rTMS) targeting the left parietal lobe in ameliorating memory impairment post-stroke.
- To explore the impact of rTMS on brain network functional connectivity in stroke survivors.
Main Methods:
- A randomized controlled trial involving 45 patients with post-stroke memory impairment.
- Intervention group received 20 Hz rTMS on the left parietal lobe; control group received sham stimulation.
- Neuropsychological tests (MoCA, RAVLT, ROCF) and functional near-infrared spectroscopy (fNIRS) were used for assessment before and after treatment.
Main Results:
- The rTMS group demonstrated significant improvements in overall cognitive scores (MoCA) and delayed recall (RAVLT, ROCF) compared to baseline and the control group.
- rTMS treatment led to enhanced resting-state functional connectivity (rsFC) within the prefrontal lobe and between the prefrontal and occipital lobes.
- fNIRS analysis revealed significant changes in brain network activity following rTMS.
Conclusions:
- High-frequency rTMS of the left parietal lobe is an effective treatment for improving memory impairment in stroke patients.
- Enhanced functional connectivity within and between specific brain regions may underlie the therapeutic effects of rTMS.
- This study provides evidence for rTMS as a potential non-invasive neuromodulation technique for stroke recovery.
