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Objectives: This systematic review and meta-analysis aim to summarize and analyze the available evidence of non-invasive brain stimulation/spinal cord stimulation on gait, balance and/or lower limb motor recovery in stroke patients.
Methods: The PubMed database was searched from its inception through to 31/03/2021 for randomized controlled trials investigating repetitive transcranial magnetic stimulation or transcranial/trans-spinal direct current/alternating current stimulation for improving gait, balance and/or lower limb motor function in stroke patients.
Results: Overall, 25 appropriate studies (including 657 stroke subjects) were found. The data indicates that non-invasive brain stimulation/spinal cord stimulation is effective in supporting recovery. However, the effects are inhomogeneous across studies: (1) transcranial/trans-spinal direct current/alternating current stimulation induce greater effects than repetitive transcranial magnetic stimulation, and (2) bilateral application of non-invasive brain stimulation is superior to unilateral stimulation.
Conclusions: The current evidence encourages further research and suggests that more individualized approaches are necessary for increasing effect sizes in stroke patients.
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http://dx.doi.org/10.1186/s12984-022-01062-y | DOI Listing |
Alzheimers Dement
September 2025
Department of Neurology, Beijing TianTan Hospital, Capital Medical University, Beijing, China.
Cognitive impairment and dementia, including Alzheimer's disease (AD), pose a global health crisis, necessitating non-invasive biomarkers for early detection. This review highlights the retina, an accessible extension of the central nervous system (CNS), as a window to cerebral pathology through structural, functional, and molecular alterations. By synthesizing interdisciplinary evidence, we identify retinal biomarkers as promising tools for early diagnosis and risk stratification.
View Article and Find Full Text PDFNeurol Res
September 2025
Department of Physiology, All India Institute of Medical Sciences (AIIMS), New Delhi, India.
Background: Spinal Cord Injury (SCI) leads to partial or complete sensorimotor loss because of the spinal lesions caused either by trauma or any pathological conditions. Rehabilitation, one of the therapeutic methods, is considered to be a significant part of therapy supporting patients with spinal cord injury. Newer methods are being incorporated, such as repetitive Transcranial Magnetic Stimulation (rTMS), a Non-Invasive Brain Stimulation (NIBS) technique to induce changes in the residual neuronal pathways, facilitating cortical excitability and neuroplasticity.
View Article and Find Full Text PDFPhys 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 Neural Eng
September 2025
Eindhoven University of Technology, De Rondom 70, Eindhoven, 5612 AP, NETHERLANDS.
Transcranial temporal interference stimulation (tTIS) has recently emerged as a non-invasive neuromodulation method aimed at reaching deeper brain regions than conventional techniques. However, many questions about its effects remain, requiring further experimental studies. This review consolidates the experimental literature on tTIS's effects in the human brain, clarifies existing evidence, identifies knowledge gaps, and proposes future research directions to evaluate its potential.
View Article and Find Full Text PDFPLoS Comput Biol
September 2025
Center for Molecular and Behavioral Neuroscience, Rutgers University, Newark, New Jersey, United States of America.
Research into the mechanisms underlying neuromodulation by tES using in-vivo animal models is key to overcoming experimental limitations in humans and essential to building a detailed understanding of the in-vivo consequences of tES. Insights from such animal models are needed to develop targeted and effective therapeutic applications of non-invasive brain stimulation in humans. The sheer difference in scale and geometry between animal models and the human brain contributes to the complexity of designing and interpreting animal studies.
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