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There are no specific treatments for spinocerebellar ataxia type 3 (SCA3), a neurodegenerative disease causing cerebellar dysfunction. Transcranial alternating current stimulation (tACS) can improve cerebellar motor functions, and it has been shown to be safe and effective in treating neurological diseases. This randomized controlled trial (RCT) explored the effects of tACS on SCA3 patients. Participants received either 40-min, 70 Hz, 2 mA tACS or sham stimulation daily for 2 weeks. The primary outcome was met by 80% of the active-tACS group (32/40) and 10% of the sham group (4/40). The active group also showed significantly greater reductions in the Scale for Assessment and Rating of Ataxia (SARA) scores. No serious adverse events occurred, indicating high safety. Therefore, tACS is effective, safe, and feasible for treating SCA3. The study is registered at ClinicalTrials.gov (NCT05557786).
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http://dx.doi.org/10.1016/j.xcrm.2025.102162 | DOI Listing |
J Neuroeng Rehabil
September 2025
Department of Rehabilitation Medicine, the Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou, 510630, Guangdong, China.
Phys Med Biol
September 2025
Zhejiang University, Zijingang Campus of Zhejiang University,Yuhangtang Road No.866,Zhejiang Province, China 310058, Hangzhou, Zhejiang, 310058, CHINA.
Transcranial ultrasound research has garnered significant attention due to its non-invasive nature, absence of ionizing radiation, and portability, making it advantageous for both imaging and therapy. A critical aspect of advancing transcranial research lies in understanding the ultrasound transmission performance of the human skull. However, inherent variations in skull shape, physical parameters, and age-related changes pose challenges for comparative studies.
View Article and Find Full Text PDFJ Comput Neurosci
September 2025
School of Electrical and Information Engineering, Tianjin University, Tianjin, 300072, China.
Transcranial alternating current stimulation (tACS) enables non-invasive modulation of brain activity, holding promise for cognitive research and clinical applications. However, it remains unclear how the spiking activity of cortical neurons is modulated by specific electric field (E-field) distributions. Here, we use a multi-scale computational framework that integrates an anatomically accurate head model with morphologically realistic neuron models to simulate the responses of layer 5 pyramidal cells (L5 PCs) to the E-fields generated by conventional M1-SO tACS.
View Article and Find Full Text PDFExp Brain Res
September 2025
Siena Brain Investigation and Neuromodulation Lab (Si-BIN Lab), Department of Medicine, Surgery and Neuroscience, Neurology and Clinical Neurophysiology Section, University of Siena, Siena, Italy.
Postdiction is a perceptual phenomenon where the perception of an earlier stimulus is influenced by a later one. This effect is commonly studied using the 'rabbit illusion', in which temporally regular, but spatially irregular, stimuli are perceived as equidistant. While previous research has focused on short inter-stimulus intervals (100-200 ms), the role of longer intervals, which may engage late attentional processes, remains unexplored.
View Article and Find Full Text PDFFront Neurol
August 2025
Department of Rehabilitation Therapy Teaching and Research, Gannan Healthcare Vocational College, Ganzhou, Jiangxi, China.
Background: Magnetic seizure therapy (MST) is an innovative neurostimulation technique. While MST shares similarities with other neuromodulation techniques, such as electroconvulsive therapy (ECT) and transcranial magnetic stimulation (TMS), most research has predominantly focused on its efficacy. However, there is a notable scarcity of studies addressing MST's safety.
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