Both clinical and neurophysiological data suggest that chronic tinnitus is characterized by focal brain activation. In the study reported here, pulsed magnetic-field therapy induced a highly significant increase of average total power for the delta, theta, and alpha frequency bands, predominantly within the frontal regions of the brain. We conclude that pulsed magnetic-field therapy induces changes of the electroencephalography pattern that correlated with a decrease in tinnitus symptoms.
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Cureus
December 2024
Research, Nibbot International, Mexico City, MEX.
Background: Autism spectrum disorder (ASD) is a heterogeneous neurobiological condition characterized by behavioral problems and delayed neurodevelopment. Although transcranial magnetic stimulation (TMS) has been proposed as an alternative treatment for patients with ASD because of its promising benefits in reducing repetitive behaviors and enhancing executive functions, the use of high-intensity pulses (Hi-TMS) appears to be related to the side effects of the therapy. Low-intensity TMS (Li-TMS) has been partially investigated, but it may have clinical effects on ASD and simultaneously increase treatment safety.
View Article and Find Full Text PDFWe demonstrate a versatile THz waveguide platform for tailored THz-induced orientation and alignment of gas molecules. The underlying waveguide structure is dispersionless, with a refractive index close to one, and enhances the electric as well as the magnetic field up to a factor of five. These properties increase the detected transient birefringence signal by more than an order of magnitude compared to conventional THz free space focusing.
View Article and Find Full Text PDFJ Neural Eng
January 2025
Huazhong University of Science and Technology Wuhan National High Magnetic Field Center, No.1037, Luoyu Road, Wuhan, Hubei, 430074, CHINA.
Objective: Pulse parameter controllable transcranial magnetic stimulation (cTMS) devices with fully-controlled semiconductor switches are increasingly being developed, but the primary waveform they generate is often accompanied by ringing, which is due to the resonance between the stimulation coil inductance and the snubber capacitors paired with the switches at the end of the pulse. This study provides a ringing suppression design method to effectively suppress it and reduce its impact on stimulation efficacy.
Methods: A three-pronged design method is developed to suppress the ringing at its source.
Magn Reson Med
January 2025
Department 8.1 - Biomedical Magnetic Resonance, Physikalisch-Technische Bundesanstalt (PTB), Braunschweig and Berlin, Germany.
Purpose: To develop a low-cost, high-performance, versatile, open-source console for low-field MRI applications that can integrate a multitude of different auxiliary sensors.
Methods: A new MR console was realized with four transmission and eight reception channels. The interface cards for signal transmission and reception are installed in PCI Express slots, allowing console integration in a commercial PC rack.
ACS Sens
January 2025
CAS Key Laboratory of Magnetic Materials and Devices, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, P. R. China.
Flexible pressure sensors are pivotal in advancing artificial intelligence, the Internet of Things (IoT), and wearable technologies. While microstructuring the functional layer of these sensors effectively enhances their performance, current fabrication methods often require complex equipment and time-consuming processes. Herein, we present a novel magnetization-induced self-assembly method to develop a magnetically grown microneedle array as a dielectric layer for flexible capacitive pressure sensors.
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