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  Selective and interactive neural correlates of visual dimension changes and response changes

Pollmann, S., Weidner, R., Müller, H. J., Maertens, M., & von Cramon, D. Y. (2006). Selective and interactive neural correlates of visual dimension changes and response changes. NeuroImage, 30(1), 254-265. doi:10.1016/j.neuroimage.2005.09.013.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0010-D796-2 Version Permalink: http://hdl.handle.net/11858/00-001M-0000-002C-5FD1-A
Genre: Journal Article

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 Creators:
Pollmann, Stefan1, Author              
Weidner, Ralf1, Author              
Müller, Hermann J., Author
Maertens, Marianne2, Author              
von Cramon, D. Yves2, Author              
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1External Organizations, ou_persistent22              
2Department Cognitive Neurology, MPI for Human Cognitive and Brain Sciences, Max Planck Society, ou_634563              

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 Abstract: In an event-related fMRI study, we investigated the neural correlates of visual dimension and response changes. We used a compound task, which required target selection by a singleton feature, a unique color or motion direction, before the appropriate motor response, which was determined by target orientation, could be selected. Both types of change elicited distinct patterns of activation, with dimension-change-related activation primarily in posterior visual areas and response-related activation primarily in motor-related areas of the parietal and frontal cortices. Response-change-related activation was delayed by about 1 s relative to dimension-change-related activation, suggesting that the latter is elicited by perceptual processes, whereas the former reflects response-related or post-response processes. Although dimension changes and response changes rely on different processes, they are not independent: response facilitation was observed for combined dimension and response repetitions, this facilitation, however, was disrupted by dimension changes.

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Language(s): eng - English
 Dates: 2006
 Publication Status: Published in print
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 Rev. Method: -
 Identifiers: eDoc: 285263
Other: P7199
DOI: 10.1016/j.neuroimage.2005.09.013
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Title: NeuroImage
Source Genre: Journal
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Publ. Info: Orlando, FL : Academic Press
Pages: - Volume / Issue: 30 (1) Sequence Number: - Start / End Page: 254 - 265 Identifier: ISSN: 1053-8119
CoNE: /journals/resource/954922650166