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  Direction of cross-modal information transfer affects human brain activation: A PET study

Kawashima, R., Watanabe, J., Kato, T., Nakamura, A., Hatano, K., Schormann, T., et al. (2002). Direction of cross-modal information transfer affects human brain activation: A PET study. European Journal of Neuroscience: European Neuroscience Association, 16, 137-144. doi:10.1046/j.1460-9568.2002.02053.x.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0010-AC18-8 Version Permalink: http://hdl.handle.net/11858/00-001M-0000-002C-3317-C
Genre: Journal Article

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 Creators:
Kawashima, R., Author
Watanabe, J., Author
Kato, T., Author
Nakamura, Akinori1, Author              
Hatano, K., Author
Schormann, T., Author
Sato, K., Author
Fukuda, H., Author
Ito, Koji, Author
Zilles, Karl, Author
Affiliations:
1MPI of Cognitive Neuroscience (Leipzig, -2003), The Prior Institutes, MPI for Human Cognitive and Brain Sciences, Max Planck Society, ou_634574              

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Free keywords: Inferior parietal lobule; premotor cortex; tactile information; visual information
 Abstract: The purpose of this study was to determine the functional organization of the human brain involved in cross-modal discrimination between tactile and visual information. Regional cerebral blood Øow was measured by positron emission tomography in nine right-handed volunteers during four discrimination tasks; tactile±tactile (TT), tactile±visual (TV), visual±tactile (VT), and visual±visual (VV). The subjects were asked either to look at digital cylinders of different diameters or to grasp the digital cylinders with the thumb and index Ænger of the right hand using haptic interfaces. Compared with the motor control task in which the subjects looked at and grasped cylinders of the same diameter, the right lateral prefrontal cortex and the right inferior parietal lobule were activated in all the four discrimination tasks. In addition, the dorsal premotor cortex, the ventral premotor cortex, and the inferior temporal cortex of the right hemisphere were activated during VT but not during TV. Our results suggest that the human brain mechanisms underlying cross-modal discrimination have two different pathways depending on the temporal order in which stimuli are presented.

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Language(s): eng - English
 Dates: 2002
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Method: -
 Identifiers: eDoc: 239044
Other: P6598
DOI: 10.1046/j.1460-9568.2002.02053.x
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Title: European Journal of Neuroscience : European Neuroscience Association
  Other : Eur. J. Neurosci
Source Genre: Journal
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Publ. Info: Oxford, UK : Published on behalf of the European Neuroscience Association by Oxford University Press
Pages: - Volume / Issue: 16 Sequence Number: - Start / End Page: 137 - 144 Identifier: ISSN: 0953-816X
CoNE: /journals/resource/954925575988