Results 141 to 150 of about 2,108 (162)
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High‐voltage compliant microelectrode array drivers for intracortical microstimulation
International Journal of Circuit Theory and Applications, 2015SummaryWe present in this paper two low‐power high‐impedance microelectrode array drivers (MEDs) dedicated for visual intracortical microstimulation. These output stages of a new microstimulator are highly configurable and able to deliver higher compliance voltage (20 V for anodic and cathodic phases) across microelectrode‐tissue interface impedance ...
Md. Hasanuzzaman +2 more
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Further study on the excitation of pyramidal tract cells by intracortical microstimulation
Experimental Brain Research, 1976The effective spread of stimulating current for pyramidal tract (PT) cells and fibers was studied using a method of cancelling the shock artifacts and the following results were obtained: 1. The excitability of PT axon collaterals was as high as that of PT cells. 2. These axon collaterals extended as far as 1.0 mm horizontally from the PT cells. 3. The
H, Asanuma, A, Arnold, P, Zarzecki
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Reversible relocation of representational boundaries of adult rats by intracortical microstimulation
NeuroReport, 1994Cortical reorganization of somatosensory maps of adult rats is not restricted to central, already cutaneous zones. A few hours of intracortical microstimulation (ICMS) at the boundaries of the hindpaw representation generated plastic reorganization beyond these functionally defined representational borders by inducing new skin field representations in ...
F, Spengler, H R, Dinse
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Supplementary eye field as defined by intracortical microstimulation: Connections in macaques
Journal of Comparative Neurology, 1990AbstractIn macaques, the frontal eye field and the recently defined supplementary eye field play a role in the production of eye movements. Whereas the structure and function of the frontal eye field are well understood, little is known about the supplementary eye field.
M F, Huerta, J H, Kaas
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Detection psychophysics of intracortical microstimulation in rat primary somatosensory cortex
European Journal of Neuroscience, 2007AbstractA problem of purposeful intracortical microstimulation is the long duration of neuronal integration time and the associated complex temporal interactions of effects to individual pulses in trains. Here we investigated the effects of repetitive stimuli on perception.
Sergejus, Butovas, Cornelius, Schwarz
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A high-impedance microelectrode driver dedicated for visual intracortical microstimulation
2012 IEEE 55th International Midwest Symposium on Circuits and Systems (MWSCAS), 2012We present in this paper a high-impedance microelectrode driver dedicated for visual intracortical microstimulation. This highly-configurable output stage is able to deliver eight bipolar or sixteen monopolar stimulation simultaneously with a constant current amplitude. The maximum stimulation current is set to 100µA which reaches 98??A through a 100kΩ
Md. Hasanuzzaman +2 more
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Microstimulation with Chronically Implanted Intracortical Electrodes
2007Stimulating microelectrodes that penetrate into the brain afford a means of accessing the basic functional units of the central nervous system. Microstimulation in the region of the cerebral cortex that subserve vision may be an alternative, or an adjunct, to a retinal prosthesis, and may be particularly attractive as a means of restoring a semblance ...
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Restoring Touch through Intracortical Microstimulation of Human Somatosensory Cortex
2017 New Generation of CAS (NGCAS), 2017Intracortical microstimulation (ICMS) in the primary somatosensory cortex (S1) offers a potential method to restore somatosensory perception in people that have lost this capacity through injury or disease. Under an Investigation Device Exemption, a twenty-eight year old participant with a long-term cervical spinal cord injury was implanted with two ...
Sharlene Flesher +6 more
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Noxious effects of excessive currents used for intracortical microstimulation
Brain Research, 1975H, Asanuma, A P, Arnold
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