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  Nonlinear regression of functional MRI data: An item recognition task study

Kruggel, F., Zysset, S., & von Cramon, D. Y. (2000). Nonlinear regression of functional MRI data: An item recognition task study. NeuroImage, 12(2), 173-183. doi:10.1006/nimg.2000.0604.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0010-CD46-9 Version Permalink: http://hdl.handle.net/11858/00-001M-0000-002C-5ABC-D
Genre: Journal Article

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 Creators:
Kruggel, F.1, 2, Author              
Zysset, Stefan3, Author              
von Cramon, D. Yves2, Author              
Affiliations:
1Department Cognitive Neurology, MPI for Human Cognitive and Brain Sciences, Max Planck Society, ou_634563              
2MPI of Cognitive Neuroscience (Leipzig, -2003), The Prior Institutes, MPI for Human Cognitive and Brain Sciences, Max Planck Society, ou_634574              
3External Organizations, ou_persistent22              

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Free keywords: fMRI; Item-recognition; Verbal working memory; Hemodynamic modeling; Nonlinear regressions
 Abstract: A classical item-recognition task was used to examine human verbal working memory in an event-related functional MRI (fMRI) study. A highly flexible experimental design incorporated a broad variation of memory load and delay time. This design allows for only three or four repetitions per stimulus condition. In a first step, linear regression analysis was applied to locate functional activation in the fMRI data. As a second step, the time course of the hemodynamic response (HR) was analyzed using nonlinear regression, which served to quantify the dependency between HR shape properties and stimulation conditions in several regions-of-interest. On the basis of this study, a closer description of the frontoparietal network involved in verbal working memory was possible.

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Language(s): eng - English
 Dates: 2000
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Method: -
 Identifiers: eDoc: 239501
ISI: 000088692200005
DOI: 10.1006/nimg.2000.0604
 Degree: -

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Title: NeuroImage
Source Genre: Journal
 Creator(s):
Affiliations:
Publ. Info: Orlando, FL : Academic Press
Pages: - Volume / Issue: 12 (2) Sequence Number: - Start / End Page: 173 - 183 Identifier: ISSN: 1053-8119
CoNE: https://pure.mpg.de/cone/journals/resource/954922650166