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  The Negative BOLD Response in Monkey V1 Is Associated with Decreases in Neuronal Activity

Shmuel, A., Augath, M., Oeltermann, A., Pauls, J., Murayama, Y., & Logothetis, N. (2003). The Negative BOLD Response in Monkey V1 Is Associated with Decreases in Neuronal Activity. Poster presented at 9th International Conference on Functional Mapping of the Human Brain (HBM 2003), New York, NY, USA.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0013-DC67-B Version Permalink: http://hdl.handle.net/21.11116/0000-0005-7828-8
Genre: Poster

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 Creators:
Shmuel, A1, 2, Author              
Augath, MA1, 2, Author              
Oeltermann, A1, 2, Author              
Pauls, J1, 2, Author              
Murayama, Y1, 2, Author              
Logothetis, NK1, 2, Author              
Affiliations:
1Department Physiology of Cognitive Processes, Max Planck Institute for Biological Cybernetics, Max Planck Society, ou_1497798              
2Max Planck Institute for Biological Cybernetics, Max Planck Society, ou_1497794              

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 Abstract: Negative BOLD responses (NBRs; i.e. below baseline) are pervasive in human fMRI experiments, but commonly ignored. A recent study characterized a robust sustained NBR in the human occipital cortex, triggered by stimulating part of the visual-field (Shmuel et al., 2002). The NBR depends on the pattern of neuronal activity and is coupled to the positive BOLD response (PBR). The NBR is correlated with reductions in cerebral blood flow (CBF) and with decreases in oxygen consumption. The findings from this human study corroborate contributions to the NBR by 1) a significant component of reduction in neuronal activity and possibly 2) a component of hemodynamic changes independent of the local changes in neuronal activity.

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 Dates: 2003-06
 Publication Status: Published in print
 Pages: -
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 Table of Contents: -
 Rev. Method: -
 Identifiers: BibTex Citekey: 2404
DOI: 10.1016/S1053-8119(05)70003-3
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Title: 9th International Conference on Functional Mapping of the Human Brain (HBM 2003)
Place of Event: New York, NY, USA
Start-/End Date: 2003-06-19 - 2003-06-22

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Title: NeuroImage
Source Genre: Journal
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Publ. Info: Orlando, FL : Academic Press
Pages: - Volume / Issue: 19 (2 Supplement) Sequence Number: 308 Start / End Page: e567 - e568 Identifier: ISSN: 1053-8119
CoNE: https://pure.mpg.de/cone/journals/resource/954922650166