Results 41 to 50 of about 3,879 (175)

Perception of microstimulation frequency in human somatosensory cortex

open access: yeseLife, 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   +5 more
doaj   +1 more source

Optical imaging of cortical networks via intracortical microstimulation.

open access: yesJ Neurophysiol, 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
Brock AA, Friedman RM, Fan RH, Roe AW.
europepmc   +4 more sources

Central nervous system microstimulation: Towards selective micro-neuromodulation [PDF]

open access: yes, 2017
Electrical stimulation technologies capable of modulating neural activity are well established for neuroscientific research and neurotherapeutics. Recent micro-neuromodulation experimental results continue to explain neural processing complexity and ...
Koivuniemi, Andrew S.   +2 more
core   +1 more source

Monosynaptic pathway from rat vibrissa motor cortex to facial motor neurons revealed by lentivirus-based axonal tracing [PDF]

open access: yes, 2005
The mammalian motor cortex typically innervates motor neurons indirectly via oligosynaptic pathways. However, evolution of skilled digit movements in humans, apes, and some monkey species is associated with the emergence of abundant monosynaptic cortical
Brecht, M., Grinevich, V., Osten, P.
core   +1 more source

Biomimetic rehabilitation engineering: the importance of somatosensory feedback for brain-machine interfaces. [PDF]

open access: yes, 2016
Brain-machine interfaces (BMIs) re-establish communication channels between the nervous system and an external device. The use of BMI technology has generated significant developments in rehabilitative medicine, promising new ways to restore lost sensory-
Blabe C H   +31 more
core   +1 more source

In vivo measurements with robust silicon-based multielectrode arrays with extreme shaft lengths [PDF]

open access: yes, 2013
In this paper, manufacturing and in vivo testing of extreme-long Si-based neural microelectrode arrays are presented. Probes with different shaft lengths (15–70 mm) are formed by deep reactive ion etching and have been equipped with platinum electrodes ...
Baracskay, Péter   +7 more
core   +1 more source

Utility and lower limits of frequency detection in surface electrode stimulation for somatosensory brain-computer interface in humans [PDF]

open access: yes, 2020
Objective: Stimulation of the primary somatosensory cortex (S1) has been successful in evoking artificial somatosensation in both humans and animals, but much is unknown about the optimal stimulation parameters needed to generate robust percepts of ...
Barbaro, Michael   +9 more
core  

Restoring the encoding properties of a stochastic neuron model by an exogenous noise [PDF]

open access: yes, 2015
Here we evaluate the possibility of improving the encoding properties of an impaired neuronal system by superimposing an exogenous noise to an external electric stimulation signal. The approach is based on the use of mathematical neuron models consisting
APOLLONIO, Francesca   +4 more
core   +1 more source

A cognitive neuroprosthetic that uses cortical stimulation for somatosensory feedback [PDF]

open access: yes, 2014
Present day cortical brain–machine interfaces (BMIs) have made impressive advances using decoded brain signals to control extracorporeal devices. Although BMIs are used in a closed-loop fashion, sensory feedback typically is visual only.
Andersen, Richard A.   +5 more
core   +1 more source

Microelectrode array recordings from the ventral roots in chronically implanted cats [PDF]

open access: yes, 2014
ventral spinal roots contain the axons of spinal motoneurons and provide the only location in the peripheral nervous system where recorded neural activity can be assured to be motor rather than sensory.
Bauman, MJ   +4 more
core   +1 more source

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