Results 31 to 40 of about 3,871 (195)

Training‐Free Regulation of Grasping by Intracortical Tactile Feedback Designed via S1‐M1 Communication

open access: yesAdvanced Science
Tactile feedback is essential for grip force control when operating a neuroprosthesis. Due to limited knowledge of cortical sensorimotor coordination, artificial feedback is mostly counterintuitive, requiring training to be associated with grasping ...
Qi Zhang   +9 more
doaj   +2 more sources

High density nanowire electrodes for intracortical microstimulation [PDF]

open access: yes2019 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   +5 more
openaire   +2 more sources

Phase-Specific Microstimulation Differentially Modulates Beta Oscillations and Affects Behavior

open access: yesCell Reports, 2020
Summary: It is widely accepted that Beta-band oscillations play a role in sensorimotor behavior. To further explore this role, we developed a hybrid platform to combine neural operant conditioning and phase-specific intracortical microstimulation (ICMS).
Oren Peles   +4 more
doaj   +1 more source

The impact of closed-loop intracortical stimulation on neural activity in brain-injured, anesthetized animals

open access: yesBioelectronic Medicine, 2022
Background Acquired brain injuries, such as stroke, are a major cause of long-term disability worldwide. Intracortical microstimulation (ICMS) can be used successfully to assist in guiding appropriate connections to restore lost sensorimotor integration.
Marta Carè   +7 more
doaj   +1 more source

Intracortical Microstimulation Elicits Human Fingertip Sensations [PDF]

open access: yes, 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   +17 more
openaire   +1 more source

Forelimb movements evoked by optogenetic stimulation of the macaque motor cortex

open access: yesNature Communications, 2020
Non-human primates are useful models for understanding the human brain but application of optogenetics to non-human primates is challenging. The authors used optogenetic intracortical microstimulation in the primary motor cortex of macaques to elicit ...
Hidenori Watanabe   +7 more
doaj   +1 more source

Muscle synergies evoked by microstimulation are preferentially encoded during behavior

open access: yesFrontiers in Computational Neuroscience, 2014
Electrical microstimulation studies provide some of the most direct evidence for the neural representation of muscle synergies. These synergies, i.e. coordinated activations of groups of muscles, have been proposed as building blocks for the construction
Simon Alexander Overduin   +5 more
doaj   +1 more source

Flexible Neural Electrode Array Based-on Porous Graphene for Cortical Microstimulation and Sensing. [PDF]

open access: yes, 2016
Neural sensing and stimulation have been the backbone of neuroscience research, brain-machine interfaces and clinical neuromodulation therapies for decades.
Kuzum, Duygu   +4 more
core   +2 more sources

Perceived timing of cutaneous vibration and intracortical microstimulation of human somatosensory cortex

open access: yesBrain Stimulation, 2022
Background: Intracortical microstimulation (ICMS) of somatosensory cortex can partially restore the sense of touch. Though ICMS bypasses much of the neuraxis, prior studies have found that conscious detection of touch elicited by ICMS lags behind the ...
Breanne Christie   +8 more
doaj   +1 more source

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