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Evidence for Brainstem and Supra-Brainstem Contributions to Rapid Cortical Plasticity in Adult Monkeys by Xu, J.; Wall, J. T. is a Neuroscience article available to read on EtoBox.

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Cortical maps can undergo amazingly rapid changes after injury of the body. These changes involve functional alterations in normal substrates, but the cortical and/or subcortical location(s) of these alterations, and the relationships of alterations in different substrates, remain controversial. The present study used neurophysiological approaches in adult monkeys to evaluate how brainstem organization of tactile inputs in the cuneate nucleus (CN) changes after acute injury of hand nerves. These data were then compared with analogous data from our earlier cortical area 3b studies, which used the same approaches and acute injury, to assess relationships of cuneate and cortical changes. The results indicate that cuneate tactile responsiveness, receptive field locations, somatotopic organization, and spatial properties of representations (i.e., location, continuity, size) change during the first minutes to hours after injury. The comparisons of cuneate and area 3b organization further show that some cuneate changes are preserved in area 3b, whereas other cuneate changes are transformed before being expressed in area 3b. The findings provide evidence that rapid reorganization in area 3

Who reads Evidence for Brainstem and Supra-Brainstem Contributions to Rapid Cortical Plasticity in Adult Monkeys?

Author

Xu, J.; Wall, J. T.

Publisher

Society for Neuroscience (ISSN 0270-6474)

Published

1999

Language

EN

Field

Neuroscience (Life Sciences)