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  Rapidly induced changes in neuromagnetic fields following repetitive hand movements

Woldag, H., Waldmann, G., Knösche, T. R., Maess, B., Friederici, A. D., & Hummelsheim, H. (2006). Rapidly induced changes in neuromagnetic fields following repetitive hand movements. European Journal of Neurology, 13(7), 723-728. doi:10.1111/j.1468-1331.2006.01361.x.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0010-D438-0 Version Permalink: http://hdl.handle.net/11858/00-001M-0000-002C-5FCD-5
Genre: Journal Article

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woldag_rapidly.pdf (Any fulltext), 241KB
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 Creators:
Woldag, H., Author
Waldmann, Guido, Author
Knösche, Thomas R.1, 2, Author              
Maess, Burkhard1, Author              
Friederici, Angela D.3, Author              
Hummelsheim, H., Author
Affiliations:
1Methods and Development Unit MEG and EEG: Signal Analysis and Modelling, MPI for Human Cognitive and Brain Sciences, Max Planck Society, ou_634559              
2Methods and Development Unit Cortical Networks and Cognitive Functions, MPI for Human Cognitive and Brain Sciences, Max Planck Society, ou_634557              
3Department Neuropsychology, MPI for Human Cognitive and Brain Sciences, Max Planck Society, ou_634551              

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 Abstract: Sensory feedback plays a major role in movement execution and motor learning, particularly in motor rehabilitation. Whilst elaborating therapeutic strategies, it is of interest to visualize the effect of a therapeutic intervention at the moment of its application. We analyzed the effect of repeated execution of a simple extension and flexion movement of the wrist on the sensorimotor cortex of seven healthy subjects using magnetoencephalography. Spatial filtering based on current dipoles was used to quantify the strength of cortical activation. Our results showed an increase of cortical activation reflecting activity of efferent neurons, whereas the activity of proprioceptive afferent neurons was not affected. Since only efferent activity increased, it is suggested that this reflects phenomena of long-term potentiation.

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Language(s): eng - English
 Dates: 2006
 Publication Status: Published in print
 Pages: -
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 Rev. Type: -
 Identifiers: eDoc: 285716
Other: P7220
DOI: 10.1111/j.1468-1331.2006.01361.x
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Title: European Journal of Neurology
  Other : Eur. J. Neurol.
Source Genre: Journal
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Publ. Info: Oxford : Rapid Communications
Pages: - Volume / Issue: 13 (7) Sequence Number: - Start / End Page: 723 - 728 Identifier: ISSN: 1351-5101
CoNE: https://pure.mpg.de/cone/journals/resource/954925617087