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  Effects of coactivation on cortical organisation and discrimination performance

Pilz, K., Veit, R., Braun, C., & Godde, B. (2004). Effects of coactivation on cortical organisation and discrimination performance. NeuroReport, 15(17), 2669-2672. doi:10.1097/00001756-200412030-00023.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0013-D733-9 Version Permalink: http://hdl.handle.net/21.11116/0000-0005-48D2-D
Genre: Journal Article

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Pilz, KS1, Author              
Veit, R1, Author              
Braun, C, Author
Godde, B, Author
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1External Organizations, ou_persistent22              

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 Abstract: We used functional MRI to investigate the effects of tactile coactivation on the topographic organisation of the human primary somatosensory cortex (SI). Behavioural consequences of coactivation were studied in a psychophysical task assessing the mislocalization of tactile stimuli. Coactivation was applied to the index, middle and ring fingers of the right hand either synchronously or asynchronously. Cortical representations for synchronously coactivated fingers moved closer together, whereas cortical representations for asynchronously coactivated fingers became segregated. Behaviourally, this pattern coincided with an increased and reduced number of mislocalizations between coactivated fingers, respectively. Thus, both synchronous and asynchronous coupling of passive tactile stimulation is able to induce short-term cortical reorganization associated with functionally relevant changes.

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 Dates: 2004-12
 Publication Status: Published in print
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 Identifiers: BibTex Citekey: 2950
DOI: 10.1097/00001756-200412030-00023
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Title: NeuroReport
Source Genre: Journal
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Publ. Info: Oxford, UK : Rapid Communications of Oxford Ltd.
Pages: - Volume / Issue: 15 (17) Sequence Number: - Start / End Page: 2669 - 2672 Identifier: ISSN: 0959-4965
CoNE: https://pure.mpg.de/cone/journals/resource/954925578070