Results 51 to 60 of about 15,463 (165)

Characterizing the short-latency evoked response to intracortical microstimulation across a multi-electrode array

bioRxiv, 2021
Objective. Persons with tetraplegia can use brain-machine interfaces to make visually guided reaches with robotic arms. Without somatosensory feedback, these movements will likely be slow and imprecise, like those of persons who retain movement but have ...
J. Sombeck, Juliet Heye, K. Kumaravelu, S. Goetz, A. Peterchev, W. Grill, S. Bensmaia, L. Miller   +7 more
semanticscholar   +1 more source

Demonstration of Intracortical Chronic Recording and Acute Microstimulation Using Novel Floating Neural Probes

Proceedings, 2017
This paper presents long-term stable multichannel recording of neural activity using novel intracortical floating probes implanted chronically in rat cortex.
Andreas Schander, Heiko Stemmann, Andreas K. Kreiter, Walter Lang   +3 more
doaj   +1 more source

Perception of microstimulation frequency in human somatosensory cortex

eLife, 2021
Microstimulation in the somatosensory cortex can evoke artificial tactile percepts and can be incorporated into bidirectional brain–computer interfaces (BCIs) to restore function after injury or disease.
Christopher L Hughes, Sharlene N Flesher, Jeffrey M Weiss, Michael Boninger, Jennifer L Collinger, Robert A Gaunt   +5 more
doaj   +1 more source

Multimodal, longitudinal assessment of intracortical microstimulation

, 2011
The fundamental obstacle to neuroprostheses based on penetrating microstimulation is the tissue's response to the device insertion and to the application of the electrical stimulation. Our long-term goal is to develop multichannel microstimulation of central nervous tissue for clinical therapy.
Koivuniemi, Andrew, Wilks, Seth J., Woolley, Andrew J., Otto, Kevin J.   +3 more
openaire   +3 more sources

Intracortical Microstimulation Elicits Human Fingertip Sensations [PDF]

, 2020
The restoration of cutaneous sensation to fingers and fingertips is critical to achieving dexterous prosthesis control for individuals with sensorimotor dysfunction. However, localized and reproducible fingertip sensations in humans have not been reported via intracortical microstimulation (ICMS) in humans.
Fifer, Matthew S, McMullen, David P, Thomas, Tessy M, Osborn, Luke E, Nickl, Robert W, Candrea, Daniel N, Pohlmeyer, Eric A, Thompson, Margaret C, Anaya, Manuel, Schellekens, Wouter, Ramsey, Nick F, Bensmaia, Sliman J, Anderson, William S, Wester, Brock A, Crone, Nathan E, Celnik, Pablo A, Cantarero, Gabriela L, Tenore, Francesco V   +17 more
openaire   +1 more source

Optical imaging of cortical networks via intracortical microstimulation

Journal of Neurophysiology, 2013
Understanding cortical organization is key to understanding brain function. Distinct neural networks underlie the functional organization of the cerebral cortex; however, little is known about how different nodes in the cortical network interact during perceptual processing and motor behavior. To study cortical network function we examined whether the
Andrea A, Brock, Robert M, Friedman, Reuben H, Fan, Anna W, Roe   +3 more
openaire   +3 more sources

Imaging the stability of chronic electrical microstimulation using electrodes coated with PEDOT/CNT and iridium oxide

iScience, 2022
Summary: Chronic microstimulation is faced with challenges that require an additional understanding of stability and safety. We implanted silicon arrays coated with poly(3,4-ethylenedioxythiophene) (PEDOT)/Carbon Nanotubes (CNT), or PCand IrOx into the ...
Xin Sally Zheng, Qianru Yang, Alberto Vazquez, Xinyan Tracy Cui   +3 more
doaj   +1 more source

Rapid Multimuscle Cortical Mapping of the Upper Limb: Activity Reveals Intralimb Gradients

European Journal of Neuroscience, Volume 63, Issue 12, June 2026.
Rapid cortical mapping of multiple muscles is feasible with potential for clinical applications. Random walk TMS cortical mapping was carried out for 8 upper limb muscles simultaneously at rest or with muscle contraction. Centres of gravity were somatopic.
Rowan Boyles, Napat Kiatwongwanich, Mikal Vicente, Paul H. Strutton   +3 more
wiley   +1 more source

Chronic alteration of Ca2+ and hemodynamic signals induced by intracortical microstimulation in the visual cortex of awake mice

bioRxiv
Understanding the chronic effects of intracortical microstimulation (ICMS) and device implantation on cortical function is essential for the development of stable neuroprosthetics.
Naofumi Suematsu, Alberto L. Vazquez, Takashi D. Y. Kozai   +2 more
semanticscholar   +2 more sources

Perceived Timing of Cutaneous Vibration and Intracortical Microstimulation of Human Somatosensory Cortex

medRxiv, 2021
Background: Electrically stimulating the somatosensory cortex can partially restore the sense of touch. Though this technique bypasses much of the neuroaxis, prior studies with non-human primates have found that conscious detection of touch elicited by ...
Breanne P. Christie, Luke E. Osborn, D. McMullen, A. Pawar, Tessy M. Thomas, S. Bensmaia, P. Celnik, M. Fifer, F. Tenore   +8 more
semanticscholar   +1 more source