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Distinct Functional Roles of Narrow and Broadband High-Gamma Activities in Human Primary Somatosensory Cortex.
J Neurophysiol
January 2025
Neuroscience Research Institute, Seoul National University Medical Research Center, Seoul, Korea.
Previous studies have shown that high-gamma (HG) activity in the primary visual cortex (V1) has distinct higher (broadband) and lower (narrowband) components with different functions and origins. However, it is unclear whether a similar segregation exists in the primary somatosensory cortex (S1), and the origins and roles of HG activity in S1 remain unknown. Here, we investigate the functional roles and origins of HG activity in S1 during tactile stimulation in humans and a rat model.
View Article and Find Full Text PDFVibro-tactile stimulation of the neck induces head righting in people with cervical dystonia.
Parkinsonism Relat Disord
January 2025
Human Sensorimotor Control Laboratory, School of Kinesiology, University of Minnesota, USA; Center for Clinical Movement Science, University of Minnesota, USA.
Introduction: Cervical dystonia (CD) is characterized by involuntary neck muscle spasms that lead to abnormal head movements or postures. It is associated with somatosensory (tactile and proprioceptive) dysfunction. Here we tested whether vibro-tactile stimulation (VTS) of the cervical muscles constitutes a non-invasive form of neuromodulation of the somatosensory system that can provide temporary symptom relief for people with CD.
View Article and Find Full Text PDFA synchronized event-cue feedback loop integrating a 3D printed wearable flexible sensor-tactor platform.
Biosens Bioelectron
January 2025
Department of Physics, Virginia Commonwealth University, Richmond, VA, 23284, USA; Institute for Sustainable Energy and Environment, Virginia Commonwealth University, Richmond, VA, 23284, USA. Electronic address:
Wearable devices designed for the somatosensory system aim to provide event-cue feedback electronics and therapeutic stimulation to the peripheral nervous system. This prompts a neurological response that is relayed back to the central nervous system. Unlike virtual reality tools, these devices precisely target peripheral mechanoreceptors by administering specific stimuli.
View Article and Find Full Text PDFPiezo Ion Channels and Their Association With Haptic Technology Use: A Narrative Review.
Cureus
January 2025
Research, Clarity Science LLC, Narragansett, USA.
The recent identification of Piezo ion channels demonstrating a mechano-sensitive impact on neurons revealed distinct Piezo-1 and 2 types. While Piezo-1 predominates in neurons linked to non-sensory stimulation, such as pressure in blood vessels, Piezo-2 predominates in neurons linked to sensory stimulation, such as touch. Piezo-1 and 2 have a major bidirectional impact on transient receptor potential (TRP) ion channels, and TRPs also impact neurotransmitter release.
View Article and Find Full Text PDFAuxillary aids for pain and anxiety reduction during dental local anesthesia in pediatric patients: a systematic review.
Evid Based Dent
January 2025
Department of Paediatric and Preventive Dentistry I.T.S Dental College, Hospital and Research Centre, Greater Noida, Uttar Pradesh, India.
Aims/objectives: This systematic review aimed to evaluate the effectiveness of auxiliary aids-Transcutaneous Electrical Nerve Stimulation (TENS), vibrotactile devices, and Low-Level Laser Therapy (LLLT) in reducing pain and anxiety during dental local anesthesia in pediatric patients.
Methods: The review followed PRISMA guidelines, employing a comprehensive search strategy across multiple databases (PubMed, Cochrane, EBSCO, LILACS, Google Scholar, and Embase) from 2014 to July 2024. Eligibility criteria were based on the PICOS framework, focusing on randomized clinical trials and clinical studies involving pediatric patients undergoing dental procedures with local anesthesia.
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