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Congruence between BOLD activation pattern and the maximal suppression effect by TMS during a simple visual discrimination task

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http://pubman.mpdl.mpg.de/cone/persons/resource/persons84257

Thielscher,  A
Department High-Field Magnetic Resonance, Max Planck Institute for Biological Cybernetics, Max Planck Society;

http://pubman.mpdl.mpg.de/cone/persons/resource/persons84162

Reichenbach,  A
Department Human Perception, Cognition and Action, Max Planck Institute for Biological Cybernetics, Max Planck Society;
Department High-Field Magnetic Resonance, Max Planck Institute for Biological Cybernetics, Max Planck Society;

http://pubman.mpdl.mpg.de/cone/persons/resource/persons84269

Uludag,  K
Department High-Field Magnetic Resonance, Max Planck Institute for Biological Cybernetics, Max Planck Society;

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Citation

Thielscher, A., Reichenbach, A., Ugurbil, K., & Uludag, K. (2007). Congruence between BOLD activation pattern and the maximal suppression effect by TMS during a simple visual discrimination task. Poster presented at 2007 Joint Annual Meeting ISMRM-ESMRMB, Berlin, Germany.


Cite as: http://hdl.handle.net/11858/00-001M-0000-0013-CDD3-1
Abstract
Transcranial Magnetic Stimulation can interfere with the neural processing in a brain area-of-interest. How well the spatial pattern of TMS interference coincides with the activation pattern observed in fMRI was evaluated. The coil position at which TMS suppressed the perception of a visual stimulus was determined and compared with the stimulus-related BOLD activation. The TMS effect consistently occurred over a specific subpart of the fMRI activation. While fMRI is capable of characterizing the general pattern of brain areas activated in a certain task, TMS has the potential to specifically localize those areas being most critical for the task.