Disinhibition of Human Primary Somatosensory Cortex After Median Nerve Transection and Reinnervation
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چکیده
منابع مشابه
Emergence of radial nerve dominance in median nerve cortex after median nerve transection in an adult squirrel monkey.
Throughout the glabrous representation in Area 3b, electrical stimulation of the dominant (median or ulnar) input produces robust, short-latency excitation, evident as a net extracellular "sink" in the Lamina 4 current source density (CSD) accompanied by action potentials. Stimulation of the collocated nondominant (radial nerve) input produces a subtle short-latency response in the Lamina 4 CSD...
متن کاملRAPID COMMUNICATION Emergence of Radial Nerve Dominance in Median Nerve Cortex After Median Nerve Transection in an Adult Squirrel Monkey
Schroeder, C. E., S. Seto, and P. E. Garraghty. Emergence of action potential patterns, as indexed by laminar profiles of radial nerve dominance in median nerve cortex after median nerve current source density (CSD) and multi-unit activity, samtransection in an adult squirrel monkey. J. Neurophysiol. 77: 522– pled using linear array multi-electrodes. Throughout the gla526, 1997. Throughout the ...
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Although each subdivision of primary somatosensory cortex (SI) receives dense input from the thalamus, but the exact location and type of information that the fibers convey have not been identified yet. In the present study, the exact source of thalamocortical fibers to areas 2 and 3b was investigated using tract-tracing techniques. Following injection of tracer into area 3b, labeled neurons ...
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In microsurgical nerve repair, the epineural sleeve technique can be used to bridge short nerve defects and to coverthe coaptation site with the epineurium of the nerve stump. The epineurium serves as a mechanical aid to reducegap size, and increase repair strength, effectively assisting nerve regeneration.This article presents a 32-year-old patient who experienced complete transection of the m...
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Somatotopic maps in the mature brain reorganize in response to deafferentation by peripheral nerve cut, amputations, or spinal lesions. Mechanisms underlying these changes may range from altered tonic inhibition and synaptic efficacy to neuronal sprouting. An understanding of these mechanisms could guide interventions that potentiate recovery from such injuries.
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ژورنال
عنوان ژورنال: Frontiers in Human Neuroscience
سال: 2020
ISSN: 1662-5161
DOI: 10.3389/fnhum.2020.00166