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The Spatial Pattern of the Positive BOLD Response at High Magnetic Field is Approximately Stationary

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http://pubman.mpdl.mpg.de/cone/persons/resource/persons84218

Shmuel,  A
Department Physiology of Cognitive Processes, Max Planck Institute for Biological Cybernetics, Max Planck Society;

http://pubman.mpdl.mpg.de/cone/persons/resource/persons84137

Yacoub E, Pfeuffer,  J
Department Physiology of Cognitive Processes, Max Planck Institute for Biological Cybernetics, Max Planck Society;

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Citation

Shmuel, A., Yacoub E, Pfeuffer, J., Van de Moortele P-F, Adriany G, Strupp J, Ugurbil, K., & Hu, X. (2002). The Spatial Pattern of the Positive BOLD Response at High Magnetic Field is Approximately Stationary. Poster presented at 10th Scientific Meeting of the International Society of Magnetic Resonance in Medicine (ISMRM 2002), Honolulu, HI, USA.


Cite as: http://hdl.handle.net/11858/00-001M-0000-0013-DFE8-6
Abstract
This study aimed at characterizing the spatio-temporal dynamics of BOLD response at high magnetic field (7T) in the human visual cortex. The spatial pattern of the BOLD response remained approximately stationary across the positive phase of the response. The onset of the response was relatively spatially coherent compared to previous reports from lower magnetic fields. The approximate stationarity of the positive phase of the response validates the usage of analysis methods that assume separability of time and space of the BOLD response.