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Chinese Journal of Brain Diseases and Rehabilitation(Electronic Edition) ›› 2025, Vol. 15 ›› Issue (01): 50-54. doi: 10.3877/cma.j.issn.2095-123X.2025.01.009

• Short Article • Previous Articles     Next Articles

Effect of transcranial direct current stimulation of the right lateral cerebellum on language function in post-stroke aphasia

Hongmei Guan1, Zouyi Wu1, Yuan Yang1, Yun Zeng1,()   

  1. 1. Department of Rehabilitation Medicine, Longgang District People's Hospital of Shenzhen, Shenzhen 518172, China
  • Received:2024-10-01 Online:2025-02-15 Published:2025-04-15
  • Contact: Yun Zeng

Abstract:

Objective

To investigate the effects of different modes of transcranial direct current stimulation (tDCS) on the lateral right cerebellum combined with language training on the language function of patients with post-stroke aphasia (PSA).

Methods

The study was designed with before-after study in the same individuals. A total of 18 patients with PSA who were hospitalized in the Rehabilitation Medicine Department of Longgang District People's Hospital of Shenzhen from February 2022 to July 2024 were selected, they had to complete three stages of treatment, namely 1 week of tDCS pseudostimulation+language training, 1 week of tDCS anodic stimulation of the right lateral cerebellum+language training, and 1 week of tDCS cathodic stimulation of the right lateral cerebellum+language training. The sequence of the 3 phases varies, with each phase spaced 1 d apart. Patients are given a diagram naming test and an auditory word diagram matching test before and after each stage. The changes in test accuracy before and after treatment at each stage, as well as the difference in the degree of improvement of accuracy after stimulation by different tDCS modes were analyzed.

Results

When tDCS anodic stimulates the right lateral cerebellum, the improvement of image naming and auditory comprehension accuracy before and after treatment was significantly higher than that of pseudo-stimulation (P<0.05),while cathodal tDCS applied to the right lateral cerebellum showed no significant difference in improvement compared with sham stimulation (P>0.05).

Conclusion

Anodal tDCS stimulation of the right lateral cerebellum can enhance the improvement degree of picture naming and auditory comprehension abilities in PSA patients.

Key words: Post-stroke aphasia, Transcranial direct current stimulation, Lateral right cerebellum, Language function

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