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

MPG-Autoren
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/persons83787

Augath,  MA
Department Physiology of Cognitive Processes, Max Planck Institute for Biological Cybernetics, Max Planck Society;

http://pubman.mpdl.mpg.de/cone/persons/resource/persons84733

Oeltermann,  A
Max Planck Institute for Biological Cybernetics, Max Planck Society;

http://pubman.mpdl.mpg.de/cone/persons/resource/persons84130

Pauls,  J
Department Physiology of Cognitive Processes, Max Planck Institute for Biological Cybernetics, Max Planck Society;

http://pubman.mpdl.mpg.de/cone/persons/resource/persons84063

Logothetis,  NK
Department Physiology of Cognitive Processes, Max Planck Institute for Biological Cybernetics, Max Planck Society;

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Zitation

Shmuel, A., Augath, M., Oeltermann, A., Pauls, J., & Logothetis, N. (2003). The Negative BOLD Response in Monkey V1 is Associated with Decreases in Neuronal Activity. Talk presented at 11th Scientific Meeting of the International Society of Magnetic Resonance in Medicine (ISMRM 2003). Toronto, Canada.


Zitierlink: http://hdl.handle.net/11858/00-001M-0000-0013-DC39-4
Zusammenfassung
This study aimed at revealing the neuronal correlates of the negative BOLD response (NBR). Electrical recordings were obtained from NBR regions in monkey V1 simultaneously with fMRI. The NBR was associated with a reduction in neuronal activity, both in the Multi-Unit-Activity and the Local-Field-Potential domains. The onset of the decrease in neuronal signal preceded the corresponding onset of the NBR, indicating that the origin of the NBR was a decrease in neuronal activity that triggered a reduction in CBF, rather than decreased neuronal activity caused by reduced CBF.