Results 11 to 20 of about 2,108 (162)

A brain-machine interface instructed by direct intracortical microstimulation [PDF]

Frontiers in Integrative Neuroscience, 2009
Brain-machine interfaces (BMIs) establish direct communications between the brain and artificial actuators. As such, they hold considerable promise for restoring mobility and communication in patients suffering from severe body paralysis. To achieve this
Joseph E O'Doherty, Joseph E O'Doherty, Mikhail Lebedev, Mikhail Lebedev, Timothy L Hanson, Timothy L Hanson, Nathan Fitzsimmons, Nathan Fitzsimmons, Miguel A.L Nicolelis, Miguel A.L Nicolelis, Miguel A.L Nicolelis, Miguel A.L Nicolelis, Miguel A.L Nicolelis, Miguel A.L Nicolelis, Miguel A.L Nicolelis   +14 more
doaj   +6 more sources

Neural Modulation of the Primary Auditory Cortex by Intracortical Microstimulation with a Bio-Inspired Electronic System. [PDF]

Bioengineering (Basel), 2020
Nowadays, the majority of the progress in the development of implantable neuroprostheses has been achieved by improving the knowledge of brain functions so as to restore sensorial impairments.
Bianco MG, Pullano SA, Citraro R, Russo E, De Sarro G, de Villers Sidani E, Fiorillo AS.   +6 more
europepmc   +4 more sources

Subthreshold intracortical microstimulation of human somatosensory cortex enhances tactile sensitivity. [PDF]

Brain Stimul
Background: Intracortical microstimulation (ICMS) of the somatosensory cortex activates neurons around the stimulating electrodes and can elicit tactile sensations. Objective: It is not clear how the direct activation of cortical neurons influences their
Osborn LE, Christie B, McMullen DP, Arriola V, Thomas TM, Pawar AS, Nickl RW, Anaya MA, Wester BA, Greenspon CM, Cantarero GL, Celnik PA, Bensmaia SJ, Yau JM, Fifer MS, Tenore FV.   +15 more
europepmc   +4 more sources

Intracortical microstimulation of human somatosensory cortex induces natural perceptual biases. [PDF]

Brain Stimul
Time-order error, a psychophysical phenomenon in which the duration in between successive stimuli alters perception, has been studied for decades by neuroscientists and psychologists. To date, however, the locus of these effects is unknown.
Greenspon CM, Shelchkova ND, Hobbs TG, Bensmaia SJ, Gaunt RA.   +4 more
europepmc   +5 more sources

High density nanowire electrodes for intracortical microstimulation [PDF]

2019 41st Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC), 2019
High-density electrodes with the nano feature size greatly enhance resolution and specificity during intracortical microstimulation. In this viewpoint, we fabricated and developed high-density nanowire (NW) electrodes, ~ 2.45×109 / cm2 that could directly stimulate specific region of the cortex with low current amplitude in the range of 120-180 μA. The
Srinivasu Valagerahally Puttaswamy, Qiongfeng Shi, David Steele, Sam Jeffery Fishlock, Chengkuo Lee, James McLaughlin 0001   +5 more
core   +6 more sources

Reducing Behavioral Detection Thresholds per Electrode via Synchronous, Spatially-Dependent Intracortical Microstimulation. [PDF]

Front Neurosci, 2022
Intracortical microstimulation (ICMS) has shown promise in restoring quality of life to patients suffering from paralysis, specifically when used in the primary somatosensory cortex (S1).
Kunigk NG, Urdaneta ME, Malone IG, Delgado F, Otto KJ.   +4 more
europepmc   +2 more sources

Layer-specific parameters of intracortical microstimulation of the somatosensory cortex. [PDF]

J Neural Eng, 2021
Abstract Objective . Intracortical microstimulation of the primary somatosensory cortex (S1) has shown great progress in restoring touch sensations to patients with paralysis. Stimulation parameters such as amplitude, phase duration, and frequency can influence the quality of the evoked percept
Urdaneta ME, Kunigk NG, Delgado F, Fried SI, Otto KJ.   +4 more
europepmc   +4 more sources

Intracortical microstimulation induces rapid microglia process convergence. [PDF]

Biomaterials
Abstract Intracortical microstimulation (ICMS) has demonstrated the potential to restore vision and hearing by stimulating relevant cortical regions in both animals and humans, offering significant clinical promise for sensory restoration.
Williams NP, Kelly AM, Zheng XS, Vazquez AL, Cui XT.   +4 more
europepmc   +3 more sources

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

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   +2 more sources

Equalization for intracortical microstimulation artifact reduction [PDF]

2013 35th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC), 2013
We present a method for decreasing the duration of artifacts present during intra-cortical microstimulation (ICMS) recordings by using techniques developed for digital communications. We replace the traditional monophasic or biphasic current stimulation pulse with a patterned pulse stream produced by a Zero Forcing Equalizer (ZFE) filter after ...
Philip Chu, Rikky Muller, Aaron C. Koralek, Jose M. Carmena, Jan M. Rabaey, Simone Gambini   +5 more
openaire   +7 more sources